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NO2 is not obtained on heating -...

`NO_2` is not obtained on heating -

A

`AgNO_3`

B

`KNO_3`

C

`Cu(NO_3)_2`

D

`Pb(NO_3)_2`

Text Solution

Verified by Experts

The correct Answer is:
B
`KNO_3` on heating decomposes to form potassium nitrite (`KNO_2`) and oxygen gas.
`2KNO_3 overset(Delta)to 2KNO_2+ O_2`
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Knowledge Check

  • The substances obtained on heating ammonium dichromate and barium azide separately are-

    A
    `N_(2)` in both the case
    B
    `N_(2)` form ammonium dichromate and NO from barium azide
    C
    `N_(2)O` from ammonium dichromate and `N_(2)` from barium azide
    D
    `N_(2)O` from ammonium dichromate and `NO_(2)` from barium azide

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