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An optically active substance A is decomposing into optically active substance B and C as : A.overset(k=10^(-3) min.^(-1))(to) 2B +C the specific rotations of A,B and C are + 40^(@), + 10^(@) and -30^(@) per mole , respectively Initially A and C were present in 4:3 mole ratio After what time (in min), the sample becomes optically inactive? ["Given" In 7/5 = 0.34, In (20)/(13) =0.43] |
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