Home Maths JEE - Advanced Previous Year Paper JEE-Advanced-2020-Paper-2 An organic compound (C 8 H 10 O 2 ) rotates …
Maths JEE - Advanced Previous Year Paper JEE-Advanced-2020-Paper-2 Numeric Response
Published on: August 14, 2026

An organic compound (C 8 H 10 O 2 ) rotates plane-polarized light. It produces pink color with neutral FeCl 3 solution. What is the total number of all the possible isomers for this compound?

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Verified by Experts
The correct answer is:
6

(6) (Considering that all isomers satisfy the given conditions)

Since given compound produces pink colour with neutral FeCl 3 .

So, it must have at least one -OH group attached to benzene ring.

Also, given compound is optically active, it means it should have a chiral centre, which is only possible whenithas-CH(OH)CH 3

So, based on the above observations, compound (C 8 H 10 O 2 ) is expected to possess the following isomeric structures.

So, total isomeric structures = 6

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