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  4. Lithium nitrate and sodium nitrate, when heated separately, respectively, give :

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Q. Lithium nitrate and sodium nitrate, when heated separately, respectively, give :

JEE MainJEE Main 2022The s-Block Elements

Solution:

$Li _2 O , NaNO _2$
As per NCERT Lithium nitrate when heated gives lithium oxide, $Li _2 O$, whereas other alkali metal nitrates decompose to give the corresponding nitrite.
$4 LiNO _3 \longrightarrow 2 Li _2 O +4 NO _2+ O _2$
$2 NaNO _3 \longrightarrow 2 NaNO _2+ O _2$
However, the decomposition product of $NaNO _3$ are temperature dependent process as shown in the below reaction.

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