Discussion Forum

Dear students, you can put your questions here. Anyone of you can answer the question of your class friends on the first chapter.

Dear students, you can put your questions here. Anyone of you can answer the question of your class friends on the first chapter.

by Professor Muniruddin Ahmed -
Number of replies: 115


CHAPTER 1

Dear students, you can put your questions here. Anyone of you can answer the question of your class friends on the first chapter.

In reply to Professor Muniruddin Ahmed

Re: Dear students, you can put your questions here. Anyone of you can answer the question of your class friends on the first chapter.

by Farabi Sultan 201-29-1640 -
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What is Carbocation ?

What is the main theme of Hydride & Alkyl shift ?

Also , what is Electrophile & Neuclophile ?


Farabi Sultan Sabah.

Id : 201-29-1640

Section : 23 ( B )

In reply to Farabi Sultan 201-29-1640

Re: Dear students, you can put your questions here. Anyone of you can answer the question of your class friends on the first chapter.

by Ruhul Amin (201-29-1646) -
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1) Hydrocarbon or organic compound with positive charge is known as carbocation

3) a) an  electrophile is an electron pair acceptor in organic chemistry.

 b) A nucleophile is a chemical species that donates an electron pair to form a chemical bond in relation           to a reaction ( organic chemistry) . tumi agula paiso koitte agula ki poraise

In reply to Ruhul Amin (201-29-1646)

Re: Dear students, you can put your questions here. Anyone of you can answer the question of your class friends on the first chapter.

by Farabi Sultan 201-29-1640 -
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Ruhul amin, as you can say Carbon with a postive charge is known as Carbocation....

Again, I also asked why it is necessary for hydride & Alkyl shift?? 

& your explanation about electrophile & nucleophile was good..... 


Farabi Sultan Sabah. 

Id : 201-29-1640. 

Batch : 23 ( B) 

In reply to Farabi Sultan 201-29-1640

Re: Dear students, you can put your questions here. Anyone of you can answer the question of your class friends on the first chapter.

by Ruhul Amin (201-29-1646) -
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Farabi i said hydrocarbon or organic compound

2nd question er answer tabassum er reply e dea ase . ok 

ruhul

id : 201-29-1646

In reply to Ruhul Amin (201-29-1646)

Re: Dear students, you can put your questions here. Anyone of you can answer the question of your class friends on the first chapter.

by Farabi Sultan 201-29-1640 -
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No,, Ruhul....

You should say in this way, Hydride or Alkyl shift will take place to increase the stability of Carbocations. 

As our sir,, clarified in the lecture. 

I hope, you remember it from lecture. 


Farabi Sultan Sabah. 

Id : 201-29-1640. 

Batch : 23 ( B) 

In reply to Farabi Sultan 201-29-1640

Re: Dear students, you can put your questions here. Anyone of you can answer the question of your class friends on the first chapter.

by Sanjida ahmed Emma 201-29-1711 -
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carbocation is an ion with a positively-charged carbon atom. 

carbocations may have two or more positive charges, on the same carbon atom or on different atoms

id.201-29-1711

23b

In reply to Farabi Sultan 201-29-1640

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by Nahida Akter -
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1. Hydrocarbon or organic compound with positive charge is known as carbocation.
Id: 201-29-1671
Section: 23(A)
In reply to Farabi Sultan 201-29-1640

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by MD. Nadim Hasan -
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A carbocation is a molecule in which a carbon atom has a positive charge and three bonds. We can basically say that they are carbon cations. Formerly, it was known as carbonium ion.

MD.Nadim Hasan

ID:201-29-1702

In reply to MD. Nadim Hasan

Re: Dear students, you can put your questions here. Anyone of you can answer the question of your class friends on the first chapter.

by Sajib Singha -
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carbocation is an ion with a positively-charged carbon atom.

carbocations may have two or more positive charges, on the same carbon atom or on different atoms
In reply to Professor Muniruddin Ahmed

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by tabassumiftekhar neha -
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1)  what is Hydride & Alkyl shift ??



tabassum iftekhar neha

id: 201-29-1635

In reply to tabassumiftekhar neha

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by Farhana Akter Tania 201-29-1709 -
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1,2-hydride shift is a carbocation rearranged in a hydrogen atom in a carbocation migrates to the carbon atom bear the formal charge of +1 (carbon 2) from an adjacent carbon (carbon 1). 

Example:1,2-alkyl shift, 1,2-aryl shift.



I don’t no for sure answer but have try my best.    




Farhana Akter

Id:201-29-1709 

In reply to tabassumiftekhar neha

Re: Dear students, you can put your questions here. Anyone of you can answer the question of your class friends on the first chapter.

by Ruhul Amin (201-29-1646) -
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here shift of hydride or alkyle means rearrangement of hydride or alkyle in the same organic compound. it happens to gain the stability or to react  with other compound. 


In reply to tabassumiftekhar neha

Re: Dear students, you can put your questions here. Anyone of you can answer the question of your class friends on the first chapter.

by Popy Rani Sutradhar -
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Hydride is hydrogen with negative charge.  Alkyle is,  deficiency one hydrogen from alkane. 

In reply to Professor Muniruddin Ahmed

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by Mila Nur Jannat -

What is Fission &Fusion?

What is the difference between the two?

In reply to Mila Nur Jannat

Re: Dear students, you can put your questions here. Anyone of you can answer the question of your class friends on the first chapter.

by Mila Nur Jannat -

What is Fission &Fusion?

What is the difference between the two?

Mila Nur Jannat

ID:201-29-1712

In reply to Mila Nur Jannat

Re: Dear students, you can put your questions here. Anyone of you can answer the question of your class friends on the first chapter.

by Riadul Hasan(201-29-1648) -
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Fission:Fission is the breakdown a large atom into 2 or more smaller one.
Fusion:Fusion means joins 2 or more atom into a larger one.
★The main difference between this 2 is,fission is breaking down the atom,and fusion joins the atom and is case of fission they are 2 types homolytic and hetarolytic but is case of fusion this is not occur.Moreover in fission there free redical occur that is too much dangerous also causes cancer in our human body.
In reply to Mila Nur Jannat

Re: Dear students, you can put your questions here. Anyone of you can answer the question of your class friends on the first chapter.

by Riadul Hasan(201-29-1648) -
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Fission:Fission is the breakdown a large atom into 2 or more smaller one.
Fusion:Fusion means joins 2 or more atom into a larger one.
★The main difference between this 2 is,fission is breaking down the atom,and fusion joins the atom and is case of fission they are 2 types homolytic and hetarolytic but is case of fusion this is not occur.Moreover in fission there free redical occur that is too much dangerous also causes cancer in our human body.
In reply to Mila Nur Jannat

Re: Dear students, you can put your questions here. Anyone of you can answer the question of your class friends on the first chapter.

by Farhana Akter Tania 201-29-1709 -
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Fission and Fusion:Fission and fusion are nuclear processes by atoms are altered to create energy. 

Difference  between fission and fusion:

1.Fission is the division of one atom into two.

2.Fusion is the combination of two lighter atoms into a larger one.


I don’t know sure this answer.

Sorry for mistake.   





Farhana Akter

Id:201-29-1709 

In reply to Farhana Akter Tania 201-29-1709

Re: Dear students, you can put your questions here. Anyone of you can answer the question of your class friends on the first chapter.

by Mila Nur Jannat -

Okay,I understood.

Id:201-29-1712

Mila Nur Jannat

In reply to Farhana Akter Tania 201-29-1709

Re: Dear students, you can put your questions here. Anyone of you can answer the question of your class friends on the first chapter.

by omar faruk 201-29-1704 -
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good

In reply to Farhana Akter Tania 201-29-1709

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by omar faruk 201-29-1704 -
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what is the main different between fusion and fisson? 

In reply to omar faruk 201-29-1704

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by Shanjida Jahan Achol -
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Ans: fission and fusion both are neuclear reaction. They produce energy. But the difference between fission and fusion are, fission is the splitting of a heavy nucleus into two or more lighter nuclei. And fusion is the process where two light nuclei combine together.

ID: 201-29-1691

Sec: A

In reply to Mila Nur Jannat

Re: Dear students, you can put your questions here. Anyone of you can answer the question of your class friends on the first chapter.

by Ruhul Amin (201-29-1646) -
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Ruhul amin 

id : 201-29-1646

Fission means break down of a perticular atom or substant into two or more different  substant.

Fusion mmeans creating a compound or substant by adding two or more different component.

In reply to Professor Muniruddin Ahmed

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by Sabatani Shova 201-29-1696 -
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What is aryl shift??


Sabatani Shova

201-29-1696

In reply to Professor Muniruddin Ahmed

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by Mahedi hasan Emon (201-29-1684) -
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What is alkyl shift?

Mahedi hasan emon

201-29-1684

In reply to Mahedi hasan Emon (201-29-1684)

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by Mehedi Hasan Rabbi -
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Alkyl shift is a carbocation rearrangement in which an alkyal group migrates to the carbon atom bearing the formal charge of +1 from an adjacent carbon atom .

Mehedi Hasan Rabbi

ID:201-29-1700

In reply to Mehedi Hasan Rabbi

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by Mahedi hasan Emon (201-29-1684) -
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Thanks mehedi hasan rabbi

In reply to Mahedi hasan Emon (201-29-1684)

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by Mehedi Hasan Rabbi -
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Alkyl shift is a carbocation rearrangement in which an alkyal group migrates to the carbon atom bearing the formal charge of +1 from an adjacent carbon atom .

Mehedi Hasan Rabbi

ID:201-29-1700

In reply to Professor Muniruddin Ahmed

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by Mehedi Hasan Rabbi -
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Why aldehyde shift and aryl shif take place?


Mehedi Hasan Rabbi

ID:201-29-1700

In reply to Mehedi Hasan Rabbi

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by khairul basar mahfuz (201-29-1631) -
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Assalamoalaikom, Dear friend.

### Mehedi Hasan Rabbi, can you sure me that your question is right? 

I mean, which one is correct (aldehyde shift and aryl shift) or (hydride shift and aryl shift)?

I hope, my question is to understand you.


Khairul Basar Mahfuz

ID:201-29-1631

Section: 23(B)

In reply to Professor Muniruddin Ahmed

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by Popy Rani Sutradhar -
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My question is why hydride or alkyle shift is necessary for occurring increase stability of carbocation

Popy Rani Sutradhar

191-29-1466

23-B

In reply to Popy Rani Sutradhar

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by Md. Shihabur Rahman (201-29-1677) -
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##Popy Rani Sutradhar
Because hydride and alkyle group have the posibility to donate electrons. They increase the stability of carbocation by donating electrons to positively charged carbon. So, hydride or alkyle shift is necessary for occurring increase stability of carbocation.

Md. Shihabur Rahman
201-29-1677
23(B)
In reply to Professor Muniruddin Ahmed

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by Md. Al-Amin -
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What are the basic difference between aldehyde and acid ?
In reply to Professor Muniruddin Ahmed

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by Farabi Sultan 201-29-1640 -
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1. Clarify properties of Aspirin ?
2. Define hydrocarbon .
3. Clarify differences between Alkane & Alkene ?

Farabi Sultan Sabah.
Id : 201-29-1640
In reply to Farabi Sultan 201-29-1640

Re: Dear students, you can put your questions here. Anyone of you can answer the question of your class friends on the first chapter.

by Popy Rani Sutradhar -
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Aspirin, an acetyl derivative of salicylic acid, it is anti inflammatory , antipyretic, Antiplatelets and analgesic.
In reply to Farabi Sultan 201-29-1640

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by khairul basar mahfuz (201-29-1631) -
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1. Clarify the properties of Aspirin?
Ans: Some of the important properties of aspirin are given below--

# Analgesic--> Analgesic means pain killer or pain reducer.
# Antipyretic--> Antipyretic means reducer of fever.
# Anti-inflammatory--> It's acting to reduce of inflammation.
# Anti-platelet--> It is helpful to do not clot the blood vessels and it's acts medicine of heart block.

2. Define hydrocarbon.
Ans: Hydrocarbons are biochemical molecules that contain C&H which is called hydrocarbon.

3. Clarify the differences between Alkane & Alkene?
Ans: The single-bonded ribbon chain is called alkene and the double-bonded ribbon chain is called alkyne.
In reply to Professor Muniruddin Ahmed

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by Riadul Hasan(201-29-1648) -
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Why Hydrogen(H) is called neutral compound??
In reply to Professor Muniruddin Ahmed

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by Riadul Hasan(201-29-1648) -
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Why Hydrogen(H) is called neutral compound??
In reply to Riadul Hasan(201-29-1648)

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by Ishrat Jahan Mim 201-29-1692 -
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Riadul Hasan ,thanks for your basic question.But there is a small mistake in this question.The question should be-Why Hydrogen(H) is called neutral atom?

Ans: A neutral atom contains a single positively charged proton and a single negatively charged electron bound to the nucleus.That means,An atom that has equal number of protons and electrons is called a neutral atom.Hydrogen is also a neutral atom.We know that the atomic number of hydrogen 1.H consists of one proton and one electron.So H has equal number of protons and electrons. Consequently it is the most common that Hydrogen is stable with a neutral charge.That is why H called a neutral atom.

I hope,you understand my answer very clearly.

ID: 201-29-1692
In reply to Professor Muniruddin Ahmed

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by Mohona Parvin -
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what is markovnikov's rule??

ID: 201-29-1676

Name:Mohona Parvin

In reply to Mohona Parvin

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by Sanjida Sultana Papri -

What is Markovnikov's rule??? 

In an addition reaction of a protic acid HX (hydrogen chloride, hydrogen bromide, or hydrogen iodide) to an alkene or alkyne, the hydrogen atom of HX becomes bonded to the carbon atom that had the greatest number of hydrogen atoms in the starting alkene or alkyne.



Papri-----

Id*201-29-1647


<23(A)

In reply to Mohona Parvin

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by Mohd. Raihunul Azam Monna [ 201-29-1678 ] -
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The rule states that with the addition of a protic acid HX to an asymmetric alkene, the acid hydrogen (H) gets attached to the carbon with more hydrogen substituents, and the halide (X) group gets attached to the carbon with more alkyl substituents. Alternatively, the rule can be stated that the hydrogen atom is added to the carbon with the greatest number of hydrogen atoms while the X component is added to the carbon with the fewest hydrogen atoms.[3]

The same is true when an alkene reacts with water in an addition reaction to form an alcohol which involve formation of carbocations. The hydroxyl group (OH) bonds to the carbon that has the greater number of carbon–carbon bonds, while the hydrogen bonds to the carbon on the other end of the double bond, that has more carbon–hydrogen bonds.

The chemical basis for Markovnikov's Rule is the formation of the most stable carbocation during the addition process. The addition of the hydrogen ion to one carbon atom in the alkene creates a positive charge on the other carbon, forming a carbocation intermediate. The more substituted the carbocation, the more stable it is, due to induction and hyperconjugation. The major product of the addition reaction will be the one formed from the more stable intermediate. Therefore, the major product of the addition of HX (where X is some atom more electronegative than H) to an alkene has the hydrogen atom in the less substituted position and X in the more substituted position
In reply to Professor Muniruddin Ahmed

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by Sanjida Sultana Papri -

What is carbonium ion??

What is Organic Redox reactions??

23--(A)

Id:201-29-1647

In reply to Sanjida Sultana Papri

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by Abdullah - Al - Muhit 201-29-1689 -
Answer: Organic redox reactions are redox reactions that take place with organic compounds.

ID: 201-29-1689
Sec: 23(A)
In reply to Sanjida Sultana Papri

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by aysha akter -
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Qus: What is carbonium ion??

Ans: carbonium ion is an organic cation Which the positive charge is located on a carbon atom.


Aysha Akter

ID:201-29-1688 

Sce:23(A)

In reply to Sanjida Sultana Papri

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by Khodaza Nusrat Nova -
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Answer: Carbonium ions are those cations which has positive charge on the carbon and positive carbon is called carbocation or carbonium ion.

Khodaza Nusrat Nova
Id:201-29-1638
23(A)
In reply to Professor Muniruddin Ahmed

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by Abdullah - Al - Muhit 201-29-1689 -
What is Substitution Reaction? Give some examples.

ID: 201-9-1689

SEC: 23(A)
In reply to Abdullah - Al - Muhit 201-29-1689

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by Sanjida Sultana Papri -

Substitution reaction means ------

Replaced from one group to another.

201-29-1647

23(A)

In reply to Abdullah - Al - Muhit 201-29-1689

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by Jarin khan Maliha -
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Substitution reaction means replace of one group with another.
In reply to Abdullah - Al - Muhit 201-29-1689

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by tusnim jahan -
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Substitution reaction is a chemical reaction where  functional group in  a chemical compound is  replaced  by another functional group.

Examples: 

1.NaOH +HCl------>NaCl + H2O

2.H2SO4 + Zn -------> ZnSO4 +H2 

In reply to Professor Muniruddin Ahmed

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by Farhana Sultana 201-29-1660 -
What is Nucleophilic addition?

ID: 201-29-1660
23: (A)
In reply to Farhana Sultana 201-29-1660

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by tusnim jahan -
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Nucleophilic addition: Nucleophilic  addition is a reaction where the the nucleophile added by donates an electron pair.

The nucleophiles are chloride, bromide, cyanide etc.

In reply to Farhana Sultana 201-29-1660

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by Sajib Singha -
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A nucleophilic addition reaction is a chemical addition reaction in which a nucleophile forms a sigma bond with an electron deficient species.

In reply to Professor Muniruddin Ahmed

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by Jarin khan Maliha -
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Write about types of carbocation and their stability order.
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by Md sajib hossen -
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The carbocation can be termed as methyl, primary, secondary or tertiary on the basis of how many carbon atoms are attached to it: Methyl carbocation: If no carbon is attached to the carbon with the positive charge it is simply called as methyl carbocation.
In reply to Professor Muniruddin Ahmed

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by kamrul hasan sujon -
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What is stability order? Which is the most stable carbocation?
In reply to kamrul hasan sujon

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by Sanjida Sultana Papri -


1. Carbocation stability means when we compare stabilities  of carbocations it must be understood that our standard for each cation is the substrate from which it is formed.

2.Most stable carbocation: 

In secondary only two alkyl groups would be available for this purpose, while a primary carbocation has only one alkyl group available. Thus the observed order of stability for carbocation is as follows: tertiary > secondary > primary > methyl.


Sanjida Sultana Papri

201-29-1647 

23(A)    

In reply to kamrul hasan sujon

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by Sajib Singha -
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tricyclopropropylcyclopropenium cation is the most stable carbocation.id:201-29-1664
In reply to kamrul hasan sujon

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by Md. Al-Amin -
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Carbonium ions are those cations which has positive charge on the carbon and positive carbon is called carbocation or carbonium ion.

201-29-1672
In reply to Professor Muniruddin Ahmed

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by aysha akter -
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In secondary only two alkyl groups would be available for this purpose, while a primary carbocation has only one alkyl group available. Thus the observed order of stability for carbocation is as follows: tertiary > secondary > primary > methyl.

Aysha Akter

I'd:201-29-1688

In reply to Professor Muniruddin Ahmed

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by aysha akter -
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Both  fission and fusion are nuclear reactions that produce energy, but the applications are not the same.fission  is the splitting of a  heavy, unstable nucleus into two lighter nuclei, and fusion is the process where two light nuclei combine together releasing vast amounts of energy. 

Aysha Akter 
I'd:201-29-1688
In reply to Professor Muniruddin Ahmed

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by Jannatul Homaira Himu 201-29-1656 -
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Fission is the division of one atom into two,and fusion is the combinationof two lighter atoms into a larger one.

Id:201-29-1656

Sec:B 

In reply to Professor Muniruddin Ahmed

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by Sinthia Akter 201-29-1693 -
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what is carbocation?

id-201-29-1693

23(B)


In reply to Sinthia Akter 201-29-1693

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by Mila Nur Jannat -

A carbocation is a molecule in which a carbon atom has a positive charge and three bonds. 

Mila Nur Jannat

ID:201-29-1712

In reply to Sinthia Akter 201-29-1693

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by Riadul Hasan(201-29-1648) -
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Carbocation is an ion with a positively charged carbon atom.
In reply to Professor Muniruddin Ahmed

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by Nahid Mumu -
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What is symmetric and asymmetric?

201-29-1641

In reply to Professor Muniruddin Ahmed

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by Mosarrat zenith -
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What is homolytic fission and heterolytic fission?

Id:201-29-1652

23(B)

In reply to Professor Muniruddin Ahmed

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by Yesmin akter Soheli 201-29-1695 -
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Which is most stable carbocation?

id:201-29-1685
In reply to Yesmin akter Soheli 201-29-1695

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by Mahzaben Akter Fariya 201-29-1639 -
tertiary carbocation is the most stable carbocation.
In reply to Professor Muniruddin Ahmed

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by Fuad Hasan(201-29-1653) -
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#What is an example of a free radical?
In reply to Fuad Hasan(201-29-1653)

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by Mosarrat zenith -
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example :hydrogen peroxide, nitric oxide,Nitrous oxide.

Mosarrat zenith

id:201-29-1652

In reply to Professor Muniruddin Ahmed

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by Md Naimul Islam (201-29-1636) -
1. What is the process to convert Liquid hydrocarbon to gaseous hydrocarbon?
2. Name the process associated with acylation of benzene.

Naimul Islam
201-29-1636
23A,Mc
In reply to Professor Muniruddin Ahmed

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by Mahmuda Sultana 201-29-1715 -
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Dear friends,soheli.you answer is:

Tertiary carbocations are most stable than primary or secondary carbocations.

 

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by Farhana Mahin Purnota 201-29-1714 -
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The tertiary carbocation is the most stable carbocation.

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by Farhana Akter Munni 201-29-1710 -
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1 What is homolytic fission and heterolytic fission

201-29-1710

Sec:B 

In reply to Farhana Akter Munni 201-29-1710

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by Shanjida Jahan Achol -
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Ans: In homolytic fission where a covalent bond breaks in a such way that each of the bonded atoms gets one of the shared electron. And in heterolytic fission where a covalent bond breaks in a such way that one of the bonded atoms gets both of the shared electron.

ID: 201-29-1691
Sec: 23(A)
In reply to Farhana Akter Munni 201-29-1710

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by Riadul Hasan(201-29-1648) -
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After breakdown of a large atom when free radical occur it's called homolytic fission.
After breakdown of a large atom when Ion occur(cation,anion) it's called heterolytic fission.
In reply to Farhana Akter Munni 201-29-1710

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by Yeasin rana 201-29-1701 -
#Farhana Akter Munni
Homolytic fission is a type of bond fission that involves the dissociation of a given molecule wherein one electron is retained by each of the original fragments of the molecule.
Heterolytic fission is a type of bond fission in which a covalent bond between two chemical species is broken in an unequal manner, resulting in the bond pair of electrons being retained by one of the chemical species.
ID:201-29-1701
23(B)
In reply to Professor Muniruddin Ahmed

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by Shihab Zaman ( 201-29-1698) -
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@farabi sultan

1. What is Carbocation ?

A carbocation is basically a carbon atom carrying an empty p orbital, while being bound to three other atoms. This empty p orbital makes carbocations reactive, because it wants electrons from other chemicals. 

2. What is the main theme of Hydride & Alkyl shift ?

Hydride shift generally occurs when the resultant carbocation is stabilized by effects such as +R effect or +M effect. Exactly same applies for alkyl shift. The only difference is that alkyl shift is a little slower and difficult as compared to hydride due to its larger size.

3. what is Electrophile & Neuclophile ?

The term ‘electro-phile’, where phile means sought after and thus electrons are sought after, is related to how electrophiles have low lying vacant orbitals that accept e-s. SImilarly, nucleo-philes where nucleus/vacant orbitals are sought after, where nucleophiles usually have a lone pair of electrons along with negative charge to seek low lying vacant orbitals for

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by Lamia Ahmed (201-29-1683) -
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1. What is carbocation ?
2. What is Electrophile & Neuclophile ?

Lamia Ahmen
201-29-1683
23-B
In reply to Professor Muniruddin Ahmed

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by Mahmuda Sultana 201-29-1715 -
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Dear friend,lamia.your answer:

1.A carbocation is an ion with a possitively charged carbon atom.

2. An electrophile is an atom or molecule that can accept electron pair.

An nucleophile is an atom or molecule that can donate electron pair.

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by Mahzaben Akter Fariya 201-29-1639 -
Hydride or alkayle shift will take place to increase the stability of carbocation?
is it true?
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by Farhan Siam 1649 -
What's the difference between carbonium ion and carbocation?
explain briefly?

Farhan Siam
201-29-1649
In reply to Farhan Siam 1649

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by sanjida mitu -

Carbocation and carbonium ion, they both are positively charged molecule.but there is a simple difference between them.

#Carbonium ion is a pentavalent carbonatom.That's means there are five covalent bonds around carbon atom.Example :CH5+.

#Carbocation is a trivalent carbon atom.That's means there are tree covalent bond around carbon atom and it is sp2 hybridised.Example:CH3+.

I think this is main difference bro.

Id:201-29-1673

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by Nahida Akter -
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carbocation is an ion with a positively-charged carbon atom. On the other hand carbocations may have two or more positive charges, on the same carbon atom or on different atoms.
ID: 201-29-1671
Section: 23(A)
In reply to Farhan Siam 1649

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by aysha akter -
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Carbonium ion is a pentavalent carbonatom.That's means there are five covalent bonds around carbon atom. On the other hand Carbocation is a trivalent carbon atom.That's means there are tree covalent bond around carbon atom and it is sp2 hybridised.

Aysha Akter

I'd:201-29-1688

In reply to Professor Muniruddin Ahmed

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by Farjana Rahman -
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1.what is aryal shift.
2. What is the difference between aldehyde and acide
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by MD. Emon Hossain 191-29-1467 -
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carbocation and carbonium ion are positively charged species of carbon but there is  a slight different.

Carbonium ion is a pentavalent carbon atom, which is a hypothetical molecule.

Carbocation is a trivalent carbon atom which is sp2 hybridised. 

Eexample CH3+ 


191-29-1467

23 (B)

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by Faria Hossain 201-29-1642 -
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#What is carbocation & carbanion? 

Faria Hossain

Id:201-29-1642 
In reply to Faria Hossain 201-29-1642

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by sanjida mitu -

Carbocation is positively charged trivalent carbon atom.Example:CH3+ 

On the other hand carbanion is negetively charged carbon atom. Example : methyle carbanion

Id:201-29-1673

23(A)

In reply to Professor Muniruddin Ahmed

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by Mahedi hasan Emon (201-29-1684) -
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1)What is Fission &Fusion?

2)  what is Hydride & Alkyl shift ??

Mahedi hasan emon

201-29-1684

In reply to Professor Muniruddin Ahmed

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by Ruhin Afroz Promi -
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1.Question:
What is fission and fusion?
Answer: Both fission and fusion are nuclear reactions that produce energy.Fission is the splitting of a heav, unstable nuclears into two lighter nuclei.Fusion is the process where two lightnuclei combine together releasing vast amount of energy.
2.What is hydride and alkyl shift?
Answer:
Hydride:A hydride is any class of chemical compound in which hydrogen is combined with another element.And sometime carbonation rearrangement involve alkyl shifts.

Ruhin Afroz Promi
Id:201-29-1699
In reply to Professor Muniruddin Ahmed

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by MD. AMINUL ISLAM 201-29-1705 -
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Why aldehyde shift and aryl shif take place?give me the explanation.

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by Sajib Singha -
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What is the definition of aryl carbocation?
Carbocation formed based on whice fundamental steps?
Id:201-29-1664
In reply to Professor Muniruddin Ahmed

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by Ruhul Amin (201-29-1646) -
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Why do we see only  carbon to make big molecules?

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by Ruhul Amin (201-29-1646) -
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Which factor is responsible for qnti markovnikov's rule to take place instead of markovnikov's rule?
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by aysha akter -
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And: A neutral atom contains a single positively charged proton and a single negatively charged electron bound to the nucleus.That means,An atom that has equal number of protons and electrons is called a neutral atom.Hydrogen is also a neutral atom.We know that the atomic number of hydrogen 1.H consists of one proton and one electron.So H has equal number of protons and electrons. Consequently it is the most common that Hydrogen is stable with a neutral charge.That is why H called a neutral atom.

Aysha Akter

I'd:201-29-1688

In reply to Professor Muniruddin Ahmed

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by Md. Siam-1666 -
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What is the use of hydrocarbon or why we study hydrocarbon in Pharmacy?
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by Nusrat Jahan Fahima -
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Hydrocarbons are the principal constituents of petroleum and natural gas. They serve as fuels and lubricants as well as raw materials for the production of plastics, fibres, rubbers, solvents, explosives, and industrial chemicals.

The predominant use of hydrocarbons is as a combustible fuel source. Methane is the predominant component of natural gas. The C6 through C10 alkanes, alkenes and isomeric cycloalkanes are the top components of gasoline, naphtha, jet fuel and specialized industrial solvent mixtures.

The most important use of hydrocarbons is for fuel. Gasoline, natural gas, fuel oil, diesel fuel, jet fuel, coal, kerosene, and propane are just some of the commonly used hydrocarbon fuels. Hydrocarbons are also used to make things, including plastics and synthetic fabrics such as polyester.

ID: 201-29-1643

23(A)

In reply to Professor Muniruddin Ahmed

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by Farhan Siam 1649 -
What is perpose of using hydrocarbon?
In reply to Farhan Siam 1649

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by Sanjida Sultana Papri -

What is perpose of using hydrocarbon?

Ans:Hydrocarbons are the principal constituents of petroleum and natural gas. They serve as fuels and lubricants as well as raw materials for the production of plastics, fibres, rubbers, solvents, explosives, and industrial chemicals.

Sanjida Sultana Papri

201-29-1647🌸

23(A)🌼

   

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by Mahzaben Akter Fariya 201-29-1639 -

Because they are the constitution of petroleum and natural gases. The are used as a lubricant, fuel. rubbers and plastic.

In reply to Professor Muniruddin Ahmed

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by MD. Emon Hossain 191-29-1467 -
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An aryl carbocation is a carbocation that has the structural formula of an aryl group..
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by Miraz patwary -

1.Define Hydrocarbo? 

2.clarify the properties of aspirin?


NAME: Miraz patwary

ID: 201-29-1651 

In reply to Professor Muniruddin Ahmed

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by Kazi Julfiker -
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Which is the most stable carbocation?


181-29-1145
In reply to Kazi Julfiker

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by Mila Nur Jannat -

Tertiary carbocationsis the most stable carbocation.

Id:201-29-1712

In reply to Kazi Julfiker

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by MD. Nadim Hasan -
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Kazi Julfiker

Tartary carbonation is more stable than the primary and secondary.Its also called 3 degree alcohol.


Id.201-29-1702    

In reply to Professor Muniruddin Ahmed

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by Ruhin Afroz Promi -
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1.Define hydrocarbon .
2. Clarify differences between Alkane & Alkene? 

In reply to Professor Muniruddin Ahmed

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by Ruhin Afroz Promi -
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What is different Between Fission & Fusion

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by towhidul islam 201-29-1694 -
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Fission is the splitting of a heavy, unstable nucleus into two lighter nuclei, and Fusion is the process where two light nuclei combine together releasing vast amounts of energy...
ID : 201-29-1694
In reply to Professor Muniruddin Ahmed

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by Nahid Mumu -
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What is alkyle and hydride shift?

201-29-1641
23A
In reply to Professor Muniruddin Ahmed

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by Md. Al-Amin -
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What is Carbocation ?
In reply to Professor Muniruddin Ahmed

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by Farhana Akter Tania 201-29-1709 -
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A carbocation is a molecule in which a carbon atom has a positive charge and three bonds. We can basically say that they are carbon cations. Formerly, it was known as carbonium ion.



Farhana Akter
201-29-1709
23 (B)
In reply to Professor Muniruddin Ahmed

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by papia sultana -201-29-1706 -
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What is Carbocation?
In reply to Professor Muniruddin Ahmed

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by Murshida Ferdous 201-29-1697 -
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What is the difference between fission and fusion?