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Ammonium dichromate is used in some fire...

Ammonium dichromate is used in some fireworks. The green-coloured powder blown in the air is

A

`Cr_2O_3`

B

`Cr_2O_3`

C

Cr

D

`CrO(O_2)`

Text Solution

Verified by Experts

The correct Answer is:
B
The green coloured compound blown in air is `Cr_2O_3`
`(NH_4)_2Cr_2O_7 overset"heat"to Cr_2O_3 + N_2 + 4H_2O`
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MARVEL PUBLICATION-D AND F BLOCK ELEMENTS -TEST YOUR GRASP
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