Which of the following vitamins does not act as, precursor for coenzymes?

Which of the following vitamins does not act as, precursor for coenzymes?

Q. Which of the following vitamins does not act as, precursor for coenzymes?

A.            Ascorbic acid

B.            Folic acid

C.            Thiamine

D.            Biotin

Answer: Ascorbic acid

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