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Haloalkanes and Haloarenes

Multiple Choice Questions

71.

Which one of the following has, the highest dipole moment?

CH₂CI₂
CHCl₃
CCl₄

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Short Answer Type

72. p-methoxy benzyl bromide reacts faster than para nitrobenzyl bromide with ethanol to form an ether product. Explain why?

p-methoxy benzyl bromide reacts faster than p-nitrobenzyl bromide because NO₂group at p-position is an electron withdrawing, the electron density reduced at o- and p-position. Nitro group is resonance hybrid so it produces steric hindrance.
So p-methoxy benzyl bromide reacts faster than p-nitro benzyl bromide. The p-methoxy is a primary substituted.

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