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Which of the following acid is a vitamin?

  • A.Aspartic acid
  • B.Glutamic acid
  • C.Saccharic acid
  • D.Ascorbic acid
  • E.Valine

Answer: D

The vitamin is ascorbic acid, vitamin C.

Ascorbic acid is the water-soluble vitamin found in citrus fruits, amla and green leafy vegetables. Its deficiency causes scurvy, and since it is not stored in the body it must be taken in the diet regularly.

Aspartic acid, glutamic acid and valine are amino acids, building blocks of proteins, not vitamins. Saccharic acid (glucaric acid) is the dicarboxylic acid formed when glucose is oxidised by nitric acid.

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