MHT CET 2026 Chemistry question

Which from following compounds is NOT optically active?

(A)3 - Bromohexane
(B)2 - Bromo - 2 - methylbutaneCorrect
(C)2 - Bromopentane
(D)2 - Bromo - 3 - methylbutane

Answer: (B)

Solution

A compound is optically active if it has a chiral centre (a carbon bonded to four different groups) and no symmetry element. 3-Bromohexane: C-3 carries H, Br, and - chiral. 2-Bromopentane: C-2 carries H, Br, and - chiral.

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Question ID VK-100277