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Question

On heating, NaNO3 gives:

A
O2
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B
NO2
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C
O2+NO2
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D
NaNO2
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Solution

The correct options are
A O2
D NaNO2
On heating sodium nitrate it undergoes decomposition reaction and liberates oxygen & convert into sodium nitrite.

2NaNO3(heat)2NaNO2+O2

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