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sodium nitrate on strong heating gives1.Na2O,NO2 2.Na2O2,NO2. 3.Na2O,NO,O2. 4.Na2O,N2,O2
The solution evaporates and sodium nitrate solid is left. It is a white solid which immediately starts melting to a clear liquid, then on strong heating it begins to bubble giving off oxygen gas and eventually leaving sodium nitrite which solidifies as a white solid again.2NaNO3 ---> 2NaNO2 + O2
At about 500•C it gives NaNO2 and O2 but at 800•C it gives Na2O and N2 and O2. Its a prviously asked iit jee question.
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