An optically pure compound X gave an [ α ] D 25 = + 20. 0 ∘ . A mixture of X and its enantiomer Y gave [ α ] D 25 = + 1 0 ∘ . The ratio of X to Y in the mixture is

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An optically pure compound X gave an [ α ] D 25 ​ = + 20. 0 ∘ . A mixture of X and its enantiomer Y gave [ α ] D 25 ​ = + 1 0 ∘ . The ratio of X to Y in the mixture is

TestHub · Accepted Answer

Optical purity = 20 10 ​ × 100 = 50% i.e. amount of X Hence optical impure = 100 − 50 = 50% Total ′ X ′ = 50 + 25 = 75% Total ′ Y ′ = 25% Hence, Ratio of X & Y = 75 : 25 = 3 : 1 ]

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