1.

The number of optical isomers of the compound, CH_(3)-underset(Br)underset(|)(CH)-underset(Br)underset(|)(CH)-COOH is :

Answer»

0
1
3
4

Solution :According to van't Hoff's equation, no. of option ISOMERS `=2^(n)` (when the molecule has no SYMMETRY).
where, n = no. of chiral carbon ATOMS.
`CH_(3) - overset(**)(C )HBR- overset(**)(C )HBr - COOH`
No of chiral carbons=2
`:.` No. of OPTICAL isomers are `=2^(n) = 2^(2) =4`


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