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Ammonium dichromate is used in some fire...

Ammonium dichromate is used in some fire works. The green coloured power blown in the air is

A

`CrO_3`

B

`Cr_2O_3`

C

`Cr`

D

`CrO(O_2)`

Text Solution

Verified by Experts

The correct Answer is:
B
Ammonium dichromate is used in some firework. The green-coloured powder which blows in air is `Cr_2O_3`.
`(NH_4)_2Cr_2O_7overset(Delta)toCr_2O_3+N_2+4H_2O`
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