Multiple choice

Vitamin C is a water-soluble vitamin necessary for normal growth and development of the body. The potassium salt structurally related to vitamin C is

  1. potassium nitrate

  2. potassium perchlorate

  3. potassium erythorbate

  4. potassium dichromate
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C Correct answer
Explanation

Potassium erythorbate (C6H7KO6) is a food additive. Chemically, it is the potassium salt of erythorbic acid. As an antioxidant structurally related to vitamin C, it helps to improve flavour stability and prevents the formation of carcinogenic nitrosamines.

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