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The major product formed in the following reaction is

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CSIR-UGC (NET) Chemical Science: Held on (15 Dec 2019)
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Answer (Detailed Solution Below)

Option 2 :
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Detailed Solution

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Concept:

The reaction goes through E2 mechanism in which overlapping the C-H σ bond with the C-X σ* antibonding orbital results in the formation of the new π bond. For the effective overlapping the two orbitals must lie in the same plane.

Explanation:

The mechanism of the reaction is given below;

Conclusion:

Therefore the correct answer is option (2).

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