NEET 2023 — Chemistry solution

NEET2023Chemistry

Match List-I with List-II.

List-I	List-II
A. Coke	I. Carbon atoms are sp $^{3}$ hybridised
B. Diamond	II. Used as a dry lubricant
C. Fullerene	III. Used as a reducing agent
D. Graphite	IV. Cage like molecules

Choose the correct answer from the options given below:

A
A-IV, B-I, C-II, D-III
B
A-III, B-I, C-IV, D-II
C
A-III, B-IV, C-I, D-II
D
A-II, B-IV, C-I, D-III

Solution

Coke is a carbon-rich residue used in metallurgy as a reducing agent (A–III). Diamond has every carbon $s p^{3}$ -hybridised in a rigid 3-D network (B–I). Fullerenes are closed cage-like polyhedra such as $C_{60}$ (C–IV). Graphite consists of layered $s p^{2}$ sheets held by weak van der Waals forces, allowing the layers to slide and giving graphite its dry-lubricant behaviour (D–II).

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