1.

A' on heating at 700^(@)C in air gives a white infusible amorphous powder (B) which is decomposed when heated in the currect of steam to give white powder 'C' and a gas 'D'.'D' turns red litmus blue and in aqueous solution , gives reddish brown ppt with K_(2)HgI_(4). compound 'C on strong heating gives 'E. 'D' is

Answer»

`N_(2)`
`NH_(3)`
`PH_(3)`
`SiH_(4)`

SOLUTION :D' is `NH_3` as explained above.


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