1.

An organic compound A upon reacting with NH_(3) gives B. on heating, B gives C. C in presence of KOH reacts with Br_(2) to give CH_(3)CH_(2)NH_(2). A is

Answer»

`CH_(3)CH_(2)COOH`
`CH_(3)COOH`
`CH_(3)CH_(2)CH_(2)COOH`
`CH_(3)-underset(CH_(3))underset(|)(C)H-COOH`

Solution :`underset((A))(CH_(3)CH_(2)COOH) overset(NH_(3))to underset("AMM. Propananoate (B)")(CH_(3)CH_(2)COONH_(4)) underet(-H_(2)O)overset(Delta)to underset("Propanamide (C)")(CH_(3)CH_(2)CONH_(2)) underset(("Hoffmann bromamide reaction"))overset(Br_(2)-KOH)to underset("ETHANAMINE")(CH_(3)CH_(2)NH_(2))`


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