Question

Match List-I with List-II:

List-I (Amino Acid)	List-II (Nature of Amino Acid)
(A) Valine	(I) Basic amino acid
(B) Glycine	(II) Neutral optically active amino acid
(C) Lysine	(III) Acidic amino acid
(D) Glutamic acid	(IV) Neutral optically inactive amino acid

Choose the correct answer from the options given below:

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

Answer 1

The Correct Option is D

(A) Valine: Valine is a neutral amino acid that is optically active, meaning it has a chiral center and can rotate plane-polarized light. So, it matches with (II).

(B) Glycine: Glycine is the only neutral amino acid that is optically inactive because it does not have a chiral center. Therefore, it matches with (IV).

(C) Lysine: Lysine is a basic amino acid due to the presence of an amino group (-NH₂) in its side chain, making it capable of accepting protons. It matches with (I).

(D) Glutamic acid: Glutamic acid is an acidic amino acid because of the carboxyl group (-COOH) in its side chain. Therefore, it matches with (III).

Thus, the correct answer is Option D.

(A) - (II) (Valine: Neutral optically active)

(B) - (IV) (Glycine: Neutral optically inactive)

(C) - (I) (Lysine: Basic)

(D) - (III) (Glutamic acid: Acidic)