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The products obtained on heating LiNO3 will be:

1. Li2O + NO2 + O2
2. Li3N + O2
3. Li2O + NO + O2
4. LiNO3 + O2

Correct answer: Li2O + NO2 + O2

Solution

Heating lithium nitrate (LiNO3) leads to its decomposition into lithium oxide (Li2O), nitrogen dioxide (NO2), and oxygen (O2), which is consistent with the known thermal decomposition reactions of nitrates.

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