1 and 2
1 and 3
2 and 3
1, 2 and 3
Answer is Right!
Answer is Wrong!
The correct answer is A. 1 and 2.
Methyl alcohol is also called wood spirit because in early stage it was prepared by the destructive distillation of wood. Ethyl alcohol is also called grain alcohol because it is obtained by the starch enriched substance.
Rectified spirit is not called commercial alcohol. Commercial alcohol is a mixture of ethyl alcohol and water, and it is not necessarily rectified.