Question

Which among the following vitamins belongs to the aliphatic series?

• A. Vitamin C
• B. Vitamin A
• C. Vitamin K
• D. Vitamin B complex

Hint:

Vitamins belonging to the aliphatic series are typically those with long carbon chains without aromatic rings, such as Vitamin C.

Answer 1

The Correct Option is A

Step 1: Understanding the aliphatic series.
Vitamins belonging to the aliphatic series contain long carbon chains or structures with straight or branched chains, with no aromatic rings. Among the options, Vitamin C (ascorbic acid) belongs to the aliphatic series as it has an aliphatic structure with a hydroxyl group.

Step 2: Analyzing the options.
(A) Vitamin C: Correct — Vitamin C is a water-soluble vitamin with an aliphatic structure.
(B) Vitamin A: Vitamin A has a structure with an aromatic ring, so it does not belong to the aliphatic series.
(C) Vitamin K: Vitamin K has a quinone structure, which is aromatic, not aliphatic.
(D) Vitamin B complex: The B vitamins are a group of compounds that include both aliphatic and non-aliphatic structures, but Vitamin C is the only one fully aliphatic.

Step 3: Conclusion.
The correct answer is (A) Vitamin C.