Regarding graphite the following informations are available…

Chemistry Solid State General Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 14, 2026

Regarding graphite the following informations are available :

The density of graphite = 2.25 gm / cm3. What is C–C bond distance in graphite ?

1.68 Å

1.545 Å

2.852 Å

1.426 Å

Text Solution

Verified by Experts

The correct answer is:

Let C – C bond distance in graphite is d A 0 ∴ Surface area = 6 × × d

= 6 × × d 2 × 10 –16 cm 2 ∴ vol. of the unit cell

= 6 × × d

2 × 10 –16 × 3.35 × 10 –8 cm 3 ∴ mass of the unit cell

= 6 × × 3.35 × d

2 × 2.25 × 10 –24 gm.

∴ 6 × × 3.35 × 2.25 × 10 –24 × d 2

= 12 × ×10 –24 × 2

∴ d 2 = × 4 = 2.04265

or d = 1.429 Aº

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