s Block ElementshardMCQ SINGLE

Lithium exhibits anomalous properties when compared to the other alkali metals. Which of the followis Block Elements Chemistry Question

Question

Lithium exhibits anomalous properties when compared to the other alkali metals. Which of the following accurately describes the products formed when Lithium nitrate ($LiNO_3$) is strongly heated?

Answer: B

💡 Solution & Explanation

While other alkali metal nitrates decompose on heating to yield the corresponding metal nitrite and oxygen ($2NaNO_3 \rightarrow 2NaNO_2 + O_2$), Lithium nitrate anomalously decomposes to give lithium oxide, nitrogen dioxide, and oxygen ($4LiNO_3 \rightarrow 2Li_2O + 4NO_2 + O_2$) due to the high polarizing power of the $Li^+$ ion.

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