1.

How many optically active stereoisomers are possible for butane-2, 3 diol

Answer»

1
2
3
4

Solution :`{:(CH_(3)-overset(**)(C)H-overset(**)(C)H-CH_(3)),("|""|"),(""OH" "OH):}`
In it two asymmetric C-atoms and a plane of symmetry are present. So optically ACTIVE ISOMERS `= 2^(N+1) = 2^(2-1) = 2`
(n = No. of asymmetric carbon atoms.)


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