Haloalkanes And Haloarenes Test

Result

Haloalkanes And Haloarenes Test - 8

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following statements is not correct?

A
C-Cl bond in vinyl chlorides is less polar than the one in CH₃Cl.

B
C-Cl bond in vinyl chloride is stronger than in CH₃Cl.

C
C-Cl bond in vinyl chloride is shorter than in CH₃Cl.

D
Vinyl chloride undergoes nucleophilic substitution more readily than CH₃Cl.

Solution

C-Cl bond in vinyl chloride is stronger than in CH₃Cl as it is less polar, has a partial double bond character and is shorter.
Hence, it undergoes nucleophilic substitution less readily than CH₃Cl.
Moreover, the vinyl carbocation formed during the nucleophilic substitution of vinyl chloride is highly unstable.
Question 2
1 / -0

Among the following, the alkyl halide having the lowest boiling point is

A
t-butyl chloride

B
n-butyl chloride

C
t-butyl bromide

D
n-butyl bromide

Solution

Boiling point of a compound α van der Waal's forces
The van der Waal's forces of attraction are stronger in alkyl bromides as compared to those in alkyl chlorides, on account of the greater atomic mass of bromine.
Among isomers, the branched isomer has a lower boiling point because it has a lesser surface area.