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Q.

Assertion: Di-tert-butyl ether cannot be prepared by Williamson’s synthesis.
Reason: tert-butyl bromide on treatement with sodium tert-butoxide preferentially undergoes elimination to from iso-butylene and tert-butyl alcohol.

Select the most appropriate answer from the options given below:

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a

Both A and R are true and R is the correct explanation of A.

b

Both A and R are true but R is not the correct explanation of A.

c

A is false but R is true.

d

A is true but R is false.

answer is A.

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Detailed Solution

The correct option is A Both A and R are true and R is the correct explanation of A
tert-Butyl bromide is 3^o alkyl halide.
Due to steric crowding, it prefer to undergo elimination instead of substitution.
Hence both Assertion and Reason are correct statements and Reason is the correct explanation of the Assertion.

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Assertion: Di-tert-butyl ether cannot be prepared by Williamson’s synthesis.Reason: tert-butyl bromide on treatement with sodium tert-butoxide preferentially undergoes elimination to from iso-butylene and tert-butyl alcohol.Select the most appropriate answer from the options given below: