Q.

Sodium propynide is allowed to react with 2-bromo- 2- methylpropane. The major product formed is:

Moderate

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Propyne and 2-methylpropane

Propyne and 2-methylpropene

4,4-D imethyl-2 -Pentyne

None of the above as no reaction takes place

answer is 2.

(Detailed Solution Below)

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Detailed Solution

The reaction is E2, since the alkyl halide is a tertiary RX, the propylide ion cant attack at the electrophillic carbon. Hence favour elimination reaction.

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