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An orange solid (A) on heating gave a gr...

An orange solid `(A)` on heating gave a green residue `(B)`, colourless gas `( C)` and water vapour. The dry gas `( C)` on passing over heated magnesium gave a white solid `(D).(D)` on reaction with water have a gas `( E)` which formed dense white fumes with `HCl`. Indentify `(A)` to `( E)` and give the reactions.

A

It gives a deep blue colouration with `CuSO_(4)` solution.

B

It is oxidised to a colorurless gas (neutral oxide ) at 1200 K in pressence of a catalyst Pt/Rh in air.

C

It gives the same gas (C ) with potassium permanganate sloution.

D

All of these.

Text Solution

Verified by Experts

The correct Answer is:
D
`(E)=NH_(3)`
`(A) Cu^(2+)+4NH_(3) to [Cu(NH_(3))_(4)]^(2+)` (deep blue colouration).
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