i am getting option (a) but answer is (b) where i am going wrong please help SO IT IS OPTION A ONLY FOR ME BUT HOW B HAS PLANE OF SYMMETRY PLEASE HELP
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1Please edit in your reasoning as to how did you obtain A and why's B wrong. It is far better to understand a concept than knowing an answer. – Avyansh Katiyar Jan 19 '19 at 04:26
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What's to explain? That's right, (a) has a plane of symmetry, and (b) doesn't. – Ivan Neretin Jan 19 '19 at 06:11
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The meso cmp. must be member of a set with at least two optically active stereoisomers. – Alchimista Jan 19 '19 at 10:05
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Answer (a) is not optically active to begin with so it's not compound "A"!. – Mathew Mahindaratne Jan 19 '19 at 21:37
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You are right that after (a) is hydrogenated the result is a meso compound. But, (a) is also a meso compound before hydrogenation, you can draw a mirror through the double bond; and so (a) misses the first part of the question. (b) satisfies both parts.
Oscar Lanzi
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