निम्न श्रेणी में Z की पहचान करिए
`C_(2)H_(5)Ioverset(KOH(alc.))rarrXoverset(Br_(2))rarrYoverset(KCN)rarrZ`

Options

A. `CH_(3)CH_(2)CN`
B. `CH_(2)Br-CH_(2)CN`
C. `CHBr=CHCN`
D. `CH_(2)CN-CH_(2)CN`

Answer

B

Explanation

`underset("आयोडाइड")underset("एथिल")(C_(2)H_(5)I)underset(beta-"निराकरण")overset("Alc.KOH")rarrunderset((X))(CH_(2)=CH_(2))overset(Br_(2))rarrunderset("(Y)")(underset(Br)underset("| ")(CH_(2))-underset(Br)underset("| ")(CH_(2)))overset(2KCN)underset(-2KBr)rarrunderset("(Z)")(underset(CN)underset("| ")(CH_(2))-underset(CN)underset("| ")(CH_(2)))`