The major product of the debromination of meso dibromobutane is:

n-butane

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1-butene

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trans-2-butene

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cis-2-butene

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Solution

The correct option is C trans-2-butene
The major product of the debromination of meso dibromobutane is trans-2-butene because of less steric hindrance. The elimination of two bromine atoms from the dibromides are predominantly trans. Hence, the reaction is stereoselctive.

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Similar questions

Assertion : Addition of bromine to trans-2-butene yields meso-2, 3-dibromobutane

Reason : Bromine addition to an alkene is an electrophilic addition.

H C l

3

1

2

2

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