Question

All the statements given below regarding ethanoic acid are true except that:

• A. Its common name is acetic acid.
• B. 5-8% aqueous solution of ethanoic acid is called vinegar.
• C. It is also known as glacial acetic acid.
• D. Ethanoic acid is insoluble in water in all proportions.

Answer 1

The correct option is D Ethanoic acid is insoluble in water in all proportions.

The common name of ethanoic acid is acetic acid. It is also known as glacial acetic acid because it freezes during winter due to low melting point.

5-8 % aqueous solution of ethanoic acid is called vinegar which is widely used as a preservative.

However, it is soluble in water in all proportions because of interactions of polar -COOH group with polar water molecules. The non- polar carbon chain very small to affect solubility.