Multiple choice general knowledge science & technology

Niacin is

  1. Vitamin B6

  2. Vitamin k

  3. Vitamin B2

  4. Vitamin B3
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Niacin is the common name for Vitamin B3, also known as nicotinic acid. It's essential for energy metabolism, DNA repair, and cholesterol synthesis. Options A, B, and C are incorrect - B6 is pyridoxine, K is phylloquinone (a fat-soluble vitamin), and B2 is riboflavin.

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