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A compound is formed by substitution of two chlorine for two hydrogens in propane. The number of possible isomeric compounds is ……

Answer»

4
3
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Solution :`C_(3)H_(8)overset(-2H)underset(+2Cl)rarr C_(3)H_(6)Cl_(2)` The following FOUR structural isomers are possible.
`CH_(3)CH_(2)CHCl_(2)(I), CH_(3)C Cl_(2)CH_(3)(II)`,
`ClClH_(2)CH_(2)Cl (III), CH_(3)-CHCl-CH_(2)Cl(IV)`.
Since (IV) has a chiral carbon, therefore it has two optical isomers. So in all, five isomers are possible.


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