JEE Main Chemistry question

What would be the product formed when 1-bromo-3-chlorobutane reacts with two equivalents of metallic sodium in ether, giving the cyclic hydrocarbon?

(A)CyclobutaneCorrect
(B)Cyclopropane
(C)Cyclopentane
(D)Cyclobutene

Answer: (A)

Solution

An -dihalide (1-bromo-3-chloropropane/butane type, with halogens on the terminal and a nearby carbon) undergoes intramolecular Wurtz coupling with Na: the two carbons bearing the

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Question ID VK-142132