STANDARDChemistry-Haloalkanes and Haloarenes
STANDARD Chemistry Reactivity of Alkyl Halides MCQ Question
Type: MCQ-conceptual-Medium-Class 12
The order of reactivity of various alkyl halides towards nucleophilic substitution follows the order
A
R—I > R—Br > R—Cl > R—F
B
R—F > R—Cl > R—Br > R—I
C
R—Cl > R—Br > R—I > R—F
D
R—Br > R—I > R—Cl > R—F
Correct Answer
Option A
Detailed Explanation
The alkyl halides are very reactive due to highly polarised C-X bond with a large difference in electronegativities of carbon and halogen atoms. The order of reactivity is iodides > bromides > chlorides > fluorides.
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