1.

A nitrogenous subsatnce X is treated with HNO_2 and the product so formed is further treated with NaOH solution , which produces blue colouration X can be :

Answer»

`CH_3CH_2NH_2`
`CH_3CH_2NO_2`
`CH_2CH_2ONO`
`(CH_3)_2CHNO_2`

ANSWER :D


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