Assalamoalaikom,
Question: What is Alcohol??
Answer: Those compound is alcohol which contains (-OH) group in there basic structure is called Alcohol.
Question: What are the 4 types of Alcohol?
Answer: Alcohol is 4 type (bases of multiple hydroxy groups) is---
1. Monohydric alcohol
2. Dihydric alcohol
3. Trihydric alcohol
4. Polyhydric alcohol.