The order of polarity of CH_3I, CH_3Br and CH_3Cl molecules follows the order:

JEE Main Chemistry question

The order of polarity of , and molecules follows the order:

(A)CH_3Br>CH_3Cl>CH_3I
(B)CH_3I>CH_3Br>CH_3Cl
(C)CH_3Cl>CH_3Br>CH_3ICorrect
(D)CH_3Cl>CH_3I>CH_3Br

Answer: (C)

Solution

Bond polarity depends on the electronegativity difference between the bonded atoms. Chlorine is the most electronegative of the three halogens here (Cl > Br > I), so

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Question ID VK-148178