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An orange solid (A) on heating gives a g...

An orange solid (A) on heating gives a green residue (B), a colourless gas (C ) and water vapours. The dry gas (C ) on passing over heated Mg gave a white solid (D). (D) on reaction with water gave a gas (E) which formed black preciptate with mercurous nitrate solution.
Select the incorrect statement.

A

The central atom(s) of the anion of solid (A) has `sp^(3)` hybridisation.

B

The orange sloid (A) is diamagnetic in nature.

C

The anoin of orange solid (A) is oxidising in nature.

D

None

Text Solution

Verified by Experts

The correct Answer is:
D
`A=(NH_(4))_(2)Cr_(2)O_(7)`
, all electrons are paired. So diamagnetic `(3d^(0)4s^(0))`
`Cr_(2)O_(7)^(2-)` acts as strong oxidising agent in acidic medium.
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