ChemistryNEET 2021Nucleophilic substitution: SN1 and SN2

Haloalkanes and Haloarenes

The correct sequence of bond enthalpy of the C–X bond is:

A. $C H_{3} - F < C H_{3} - Cl < C H_{3} - Br < C H_{3} - I$
B. $C H_{3} - F > C H_{3} - Cl > C H_{3} - Br > C H_{3} - I$ ✓
C. $C H_{3} - F < C H_{3} - Cl > C H_{3} - Br > C H_{3} - I$
D. $C H_{3} - Cl > C H_{3} - F > C H_{3} - Br > C H_{3} - I$

You have the answer. The worked solution — and why the other three were written — is part of a paid pack.

More from this chapter in past papers

From Chemistry › Haloalkanes and Haloarenes › Nucleophilic substitution: SN1 and SN2 — lectures, notes and every past question on it.

Last revised 7 Sept 2026. Found a mistake? Tell us — corrections are the fastest thing we act on.

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