JEE CHEMISTRY MCQ: HALOALKANES AND HALO ARENES

1 Easy

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Assertion :

{CHCl}_3

is more acidic than

{CHF}_3

.

Reason : The conjugate base of

{CHCl}_3

is more stable than

{CHF}_3

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Correct option: A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

Option A is correct because both the assertion and reason are true, and the reason correctly explains why chloroform is more acidic than fluoroform due to the greater stability of its conjugate base.

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An alkyl halide reacts with metallic sodium in dry ether. The reaction is known as : In electrophilic substitution reaction of chlorobenzene, the chloro group: Which of the followings statements is/are incorrect? Polymerization of alkenes takes place through Assertion (A): The boiling points of alkyl halides decrease in the order:

RI > {R B r} > {R C I} > {R F}

.

Reason (R): The boiling points of alkyl chlorides, bromides and iodides are considerably higher than that of the hydrocarbon of comparable molecular mass. Friedel-Craft’s reaction of bromobenzene with methyl iodide gives: