Which of the following acids is a vitamin?
(a) Aspartic and (b) Ascorbic acid (c) Adipic acid (d) Saccharic acid
Answer: (b) Ascorbic acid.
It is the chemical name of vitamin C. While others are not vitamins aspartic acid is an amino acid. Adipic acid is a dicarboxylic acid having 8 carbon chain. Saccharic acid is a dicarboxylic acid obtained by oxidation of glucose using HNO3.