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JEE CHEMISTRY MCQ: HALOALKANES AND HALO ARENES
1
Medium
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Analyzing
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Arrange the compound of each set in order of reactivity towards displacement
a) 1-Bromo butane b) 1-Bromo-2,2-dimethyl propane
c) 1-Bromo-2-methyl butane d) 1-Bromo-3-methyl butane
a) 1-Bromo butane b) 1-Bromo-2,2-dimethyl propane
c) 1-Bromo-2-methyl butane d) 1-Bromo-3-methyl butane
View answer and explanation
Correct option: B
a > d > c > b
Option B (a > d > c > b) is correct because reactivity depends on steric hindrance, with less hindered primary alkyl halides reacting faster.
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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: