Question

Match List-I with List-II

List-I (Vitamin)	List-II (Name)
(A) Vitamin \(B_1\)	(I) Cyanocobalamin
(B) Vitamin \(B_2\)	(II) Niacin
(C) Vitamin \(B_3\)	(III) Riboflavin
(D) Vitamin \(B_5\)	(IV) Thiamine
(E) Vitamin \(B_{12}\)	(V) Pantothenic acid

• (A) - (II), (B) - (III), (C) - (V), (D) - (I), (E) - (IV)
• (A) - (III), (B) - (I), (C) - (IV), (D) - (II), (E) - (V)
• (A) - (IV), (B) - (III), (C) - (II), (D) - (V), (E) - (I)
• (A) - (V), (B) - (II), (C) - (IV), (D) - (III), (E) - (I)

Hint:

Remembering a simple mnemonic for B-group vitamins can prevent confusion in match-the-following questions:
"The Rhythm of Nature Proves Constant"
- T: Thiamine (\(B_1\))
- R: Riboflavin (\(B_2\))
- N: Niacin (\(B_3\))
- P: Pantothenic acid (\(B_5\))
- C: Cobalamin (\(B_{12}\))

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
Vitamins are essential organic micronutrients required by the body in small quantities for various metabolic functions.
The B-complex vitamins represent a group of water-soluble vitamins that serve as coenzymes in crucial enzymatic reactions.
This question requires matching the common chemical names of specific B-complex vitamins with their official numerical designations.

Step 2: Detailed Explanation:
Let us analyze each B vitamin listed in List-I and identify its corresponding chemical name from List-II:
- (A) Vitamin \(B_1\): This vitamin is chemically known as Thiamine. It plays a critical role in energy metabolism, particularly in the decarboxylation of branched-chain amino acids and carbohydrates. Thus, (A) matches with (IV).
- (B) Vitamin \(B_2\): This vitamin is chemically known as Riboflavin. It is a precursor of the coenzymes flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD), which are central to cellular respiration and electron transport chain pathways. Thus, (B) matches with (III).
- (C) Vitamin \(B_3\): This vitamin is chemically known as Niacin (nicotinic acid). It is the precursor of NAD and NADP, which are vital coenzymes in redox reactions. Thus, (C) matches with (II).
- (D) Vitamin \(B_5\): This vitamin is chemically known as Pantothenic acid. It is an essential component for the synthesis of Coenzyme A (CoA), which participates in the fatty acid synthesis and citric acid cycle. Thus, (D) matches with (V).
- (E) Vitamin \(B_{12}\): This vitamin is chemically known as Cyanocobalamin. It is involved in DNA synthesis, red blood cell maturation, and neurological functions. Thus, (E) matches with (I).
Combining these pairs, we obtain the matching sequence: (A) - (IV), (B) - (III), (C) - (II), (D) - (V), (E) - (I).

Step 3: Final Answer:
The correct matching sequence is (A) - (IV), (B) - (III), (C) - (II), (D) - (V), (E) - (I).