Question

Match List-I with List-II

List-I (Size of Things)	List-II (Approximate Size)
(A) Size of atom	(I) 2.5 nm
(B) Size of Bucky ball (C60)	(II) 0.1 nm
(C) Size of CNT	(III) 1 nm
(D) Size of DNA	(IV) 2 nm

Choose the correct answer from the options given below:

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

Hint:

Memorize common nanoscales—atoms are smaller than nanostructures like DNA, Buckyballs, and CNTs, which range from 0.1 nm to 2.5 nm.

Answer 1

The Correct Option is A

From known approximate sizes:
- (A) Size of an atom is 0.1 nm.
- (B) Size of C60 (Buckyball) is 1 nm.
- (C) Diameter of CNTs is typically 2.5 nm.
- (D) DNA width is 2 nm.