Q4 of 27 Page 1

Identify the compound that on hydrogenation produces an optically active compound from the following compounds:

Compound B produces an optically active compound after hydrogenation.


Explanation:


Any compound is said to be optically inactive when:


1. It can show enantiomerism-It forms non-super imposable mirror images of each other.


2. It has a chiral carbon-A chiral carbon is one which is bonded to four different molecules.


Hydrogenation of A:



The product formed by the hydrogenation of compound A does not have a chiral carbon. Therefore, it is not optically active.


Hydrogenation of B:



The product formed by the hydrogenation of compound B has a chiral carbon. Therefore, it is optically active.


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