Niacin or nicotinic acid is a monocarboxylic acid derivative of

Q. Niacin or nicotinic acid is a monocarboxylic acid derivative of
A. Pyridine
B. Pyrimidine
C. Flavin
D. Adenine
Answer: Pyridine

A. Pyridine
B. Pyrimidine
C. Flavin
D. Adenine
Answer: Pyridine