1.

Which of the following compounds may give blood red colouration while performing Lassaigne.s lest for nitrogen

Answer»

<P>`(NH_2)_2C = S`
`p - CH_2 - C_6H_4 - SO_3`
`C_6M_3SO_2H`
`(NH_2)_2C = O`

ANSWER :A::B


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