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Assertion:2-Bromobutane on reaction with...

Assertion:2-Bromobutane on reaction with sodium ethoxide in ethanol gives 1-butene as a major product
Reason:1-butene is more stable than 2-butene.

A

If both assertion and reason are true and reason is the explaination of assertion.

B

If both assertion and reason are true but reason is not the correct explaination of assertion

C

If assertion is true but reason is false

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
D

2-bromobutane on reaction with sodium ethoxide in ethanol gives 2-butene as major product.
This is according to Saytzeff's rule i.e. the predominant product is the most substituted alkene,i.e. are carrying the largest number of alkyl substituents of hydrogen is eliminated preferentially from the carbon atom joined to the least number of hydrogen atoms.2-butene is more stable than 1-butene due to presence of large number of hyper conjugating structures in2-bruten.
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Assertion : 2- Bromobutane on reaction with sodium ethoxide in ethanol gives 2- butene as a major product. Reason : 2- Butene is more stable than 1- butene.

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