1.

An organic compound 'A' on treatment with NH_(3) gives 'B', which on heating given 'C','C' when treated with Br_(2) in the presence of KOH produces ethylamine. Compound 'A' is

Answer»

`CH_(3)-underset(CH_(3))underset(|)(CHCOOH)`
`CH_(3)CH_(2)COOH`
`CH_(3)COOH`
`CH_(3)CH_(2)CH_(2)COOH`

Solution :`CH_(3)-underset((A))(CH_(2))-COOHoverset(NH_(3))rarrCH_(3)-underset((B))(CH_(2))-COONH_(4)overset(Delta)rarrCH_(3)-underset((C))(CH_(2))-COONH_(2)`
`underset("Hoffmann bromamide REACTION")overset(KOH+Br_(2))rarrCH_(3)-underset(("Ethylamine"))(CH_(2))-NH_(2)`


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