Question

To prevent the misuse of important commercial solvent ethanol, it is mixed with _________.

• A. ethanoic acid
• B. methanol
• C. propane
• D. propanol

Answer 1

The correct option is B methanol

Ethanol is an important solvent which is used in the production of paints, cosmetics, perfumes, and other goods. Ethanol is also used to make beer, whiskey, rum, etc. for drinking purposes.
Therefore, a little amount of ${\text{CuSO}}_4$, methanol, and pyridine are added to ethanol to make it unfit for drinking in order to prevent the misuse of ethanol.
Alcohol is subjected to this process is known as denaturation of alcohol and the resulting alcohol is known as denatured alcohol.