When (NH(4))(2)Cr(2)O(7) is heated, the ...

When `(NH_(4))_(2)Cr_(2)O_(7)` is heated, the gas evolved is

A

`N_(2)`

B

`NO_(2)`

C

`O_(2)`

D

`N_(2)O`

Text Solution

Verified by Experts

The correct Answer is:

A

When ammonium dichromate is heated, it form nitrogen gas, `Cr_(2)O_(3)` and water.
`(NH_(4))_(2)Cr_(2)O_(7) overset(Delta)to Cr_(2)O_(3) + 4H_(2)O + N_(2)`

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