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Nucleophilic Substitution in Alkyl Halides

Select the re...

Question

Select the reagent that will yield the greater amount of substitution on reaction with $C H_{3} - C H_{2} - B r$ :

A

C H_{3} C H_{2} O K

in dimethyl sulfoxide (DMSO)

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B

(C H_{3})_{3} C O K

in dimethyl sulfoxide (DMSO)

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C

Both (a) and (b) will give comparable amounts of substitution

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D

Neither (a) nor (b) will give any amount of substitution

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Solution

The correct option is B $C H_{3} C H_{2} O K$ in dimethyl sulfoxide (DMSO)
$1^{o}$ alkyl halide is more reaction for $S N^{2}$ displacement.Also the bulky base elimination reaction.So, $C H_{3} C H_{2} - O K$ in DMSO solvent will generally give the substitution product.

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Similar questions

Q. The reagent that will yield the greater amount of substitution on reaction with

C H_{3} - C H_{2} - B r

Q. Which of the following is/are true when

N a C l

is dissolved in Dimethyl sulfoxide (DMSO)?

Q. Which halide ion is the best nucleophilie in dimethyl sulfoxide solution?

Q. Which of the following compounds will give racemic mixture of nucleophilic substitution by

O H^{-}

C H_{3} - C H | C_{2} H_{5} - B r

C H_{3} - B r | C | C_{2} H_{5} - C H_{3}

C H_{3} - C H | C_{2} H_{5} - C H_{2} B r

Q. Match the column

A, B

C

Reactabts $(A)$	Products $(B)$	Name of the reaction $(C)$
$C H_{3} - C H_{3} + C l_{2}$	$C O_{2} + H_{2} O$	Addition reaction
$C_{2} H_{6} + O_{2}$	$C H_{2} = C H_{2}$	Thermal cracking
$_{n} C H_{2} = C H_{2}$	$C H_{2} = C H_{2} + C H_{4}$	Substitution reactions
$C H_{3} - C H_{2} - C H_{3}$	$C H_{3} - C H_{2} C l + H C l$	Polymerisation
$C H \equiv C H + H_{2}$	$[- C H_{2} - C H_{2} -]_{n}$	Combustion

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Nucleophilic Substitution in Alkyl Halides

Standard XII Chemistry

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