During debromination of meso-dibromobutane, the major compound formed is:

n-butane

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1-butene

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cis-2butene

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trans-2butene.

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Solution

The correct option is D trans-2butene.
During the debromination, $B r_{2}$ molecule is eliminated and a double bond is formed. So there will be two products:
a. Trans-2-butene and
b. cis-2-butene.

The trans product is more stable than the cis one due to the steric effect. So the major product would be the trans-2-butene.

Hence, the correct option is D.

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Similar questions

During debromination of meso-2,3-dibromobutane,the major compound formed is

It is given that when (±)-2,3-dibromobutane reacts with $K O H$ , some of the products formed are:

Explain via mechanism and then choose the correct ones from the following.

Monosubstitution of (2S,3S)-2,3-dibromobutane using $O H^{-}$ yields a mixture of products.
Monosubstitution of (2S,3S)-2,3-dibromobutane using $O H^{-}$ yields a single major product.
Monosubstitution of (2R,3R)-2,3-dibromobutane using $O H^{-}$ yields a mixture of products.
Monosubstitution of (2S,3S)-2,3-dibromobutane using $O H^{-}$ yields a mixture of products.

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