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JEE CHEMISTRY MCQ: HALOALKANES AND HALO ARENES
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Which of the following when heated with KOH and primary amine gives carbylamine test?
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Correct option: A
Option A (CHCl3) is correct because chloroform (CHCl3) reacts with a primary amine and KOH to produce an isocyanide, which has a foul smell, indicating a positive carbylamine test.
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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:
.
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:
.
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: