JEE CHEMISTRY MCQ: HALOALKANES AND HALO ARENES

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In mid 1960 , it is used as cleaning fluid, degreasing agent, spot remover, fire extinguisher. Which of the solvent is used in mid 1960 ?

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Correct option: A

Carbon tetrachloride

Option A (Carbon tetrachloride) is correct because it was widely used as a cleaning fluid, degreasing agent, spot remover, and fire extinguisher in the mid-1960s.

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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}

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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: