Chemistry · 2022
JEE Main · 27 July 2022, Shift 1 · Q89
Optical activity of an enantiomeric mixture is +12.6^° and the specific rotation of (+) isomer is +30^°. The optical purity is \ \ \ \ %.
Optical activity of an enantiomeric mixture is $\displaystyle +12.6^{\circ}$ and the specific rotation of (+) isomer is $\displaystyle +30^{\circ}$. The optical purity is \_\_\_\_ %.
Official answer
42
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JEE Main 2022 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.