Question

The number of products formed by thermal decomposition of lithium nitrate, sodium nitrate respectively are:

• A. 2, 3
• B. 2, 2
• C. 3, 3
• D. 3, 2

Hint:

Remember the decomposition patterns of nitrates: - Lithium nitrate: \( LiNO_3 \rightarrow Li_2O + NO_2 + O_2 \) - Sodium nitrate: \( NaNO_3 \rightarrow NaNO_2 + O_2 \)

Answer 1

The Correct Option is D

Step 1: The thermal decomposition of lithium nitrate (\(LiNO_3\)) and sodium nitrate (\(NaNO_3\)) produces different products.
Step 2: When lithium nitrate decomposes, it forms lithium oxide (\(Li_2O\)), nitrogen dioxide (\(NO_2\)), and oxygen (\(O_2\)), i.e., three products.
Step 3: When sodium nitrate decomposes, it forms sodium nitrite (\(NaNO_2\)) and oxygen (\(O_2\)), i.e., two products.
Thus, the number of products formed by thermal decomposition of lithium nitrate and sodium nitrate respectively is 3 and 2.