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JEE CHEMISTRY MCQ: HALOALKANES AND HALO ARENES

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Application +4 | -1

{C_6}{H_5}C{H_2}Br\xrightarrow[{2.\,{H_3}{O^ + }}]{{1.\,Mg,\,\,{\text{Ether}}}}X

The product

({X})

is :-

View answer and explanation

Correct option: B

{C}_6 {H}_5 {CH}_3

Option B (

{C}_6 {H}_5 {CH}_3

) is correct because the Grignard reagent formed from

{C_6}{H_5}C{H_2}Br

reacts with water to produce toluene (

{C}_6 {H}_5 {CH}_3

).

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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: