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When (NH4)2CrO2O7 is heated, the gas evo...

When `(NH_4)_2CrO_2O_7` is heated, the gas evolved is

A

`N_2`

B

`NO_2`

C

`O_2`

D

`Na_2O`

Text Solution

Verified by Experts

The correct Answer is:
a
Due to the formation of `Cr^(3+)` from `Cr_2O_7^(2-)` and the solution turns green.
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