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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

sodium dichromate

B

potassium dichromate

C

potassium chromate

D

ammonium dichromate.

Text Solution

Verified by Experts

The correct Answer is:
D
Orange solid is ammonium dichromate i.e., `(NH_(4))_(2)Cr_(2)O_(7)`.
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Knowledge Check

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