Question

The products obtained on heating $ LiN{O_3} $ will be?
A) $ LiN{O_2} + {O_2} $
B) $ L{i_2}O + N{O_2} + {O_2} $
C) $ L{i_3}N + {O_2} $
D) $ L{i_2}O + NO + {O_2} $

Answer 1

Hint: Lithium, nitrogen and oxygen combine to form a compound which can be called as lithium nitrate. Lithium nitrate on heating forms multiple products which includes the formation of alkali oxide, oxygen and nitrogen dioxide. The alkali oxide formed in this reaction is lithium oxide.

Complete answer:
The atoms in the periodic table combine with other atoms and form molecules attached through different bonds. Lithium is an electropositive element and also a metal, nitrogen and oxygen are non-metallic. These three atoms combine to form a chemical compound called lithium nitrate.
The molecular formula of lithium nitrate is $ LiN{O_3} $ , as it has elements other than oxygen and hydrogen. It can be considered as an inorganic compound.
Inorganic compounds upon heating give multiple products. The products formed on heating lithium nitrate are alkali oxide, oxygen and nitrogen dioxide. The alkali can be a metal that belongs to the alkali earth metals. Here, the alkali metal is lithium.
The chemical reaction involved can be written as:
 $ 4LiN{O_3} \to 2L{i_2}O + 4N{O_2} + {O_2} $
Thus, the products are lithium oxide $ \left( {L{i_2}O} \right) $ , oxygen $ \left( {{O_2}} \right) $ and nitrogen dioxide $ \left( {N{O_2}} \right) $ .
These products are present in option B.
Option B is the correct one.

Note:
The lithium nitrate is an inorganic salt. It has so many applications like lithium batteries, ceramics. It can also exist as hydrated salt by absorbing the water molecules and exist as lithium nitrate trihydrate. It can also be used in the electroplating industry. It can also be used as a medium by storing heat.