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An organic compound (C3H9N) (A) when tre...

An organic compound `(C_3H_9N)` `(A)` when treated with nitrous acid , gave an alcohol and `N_2` gas was evolved. (A) on warming with `CHCl_3` and caustiv potash gave `(C)` which on reduction gave isopropylmethylamine. Predict the structure of (A).

A

B

`CH_3CH_2-NH-CH_3`

C

`CH_3-underset(CH_3)underset(|)(N)-CH_3`

D

`CH_3CH_2CH_2-NH_2`

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