NEET Chemistry The s-Block Elements Questions Solved

Assertion : As the electropositive character increases down the group, the stability of carbonates and hydrogen carbonates of alkali metals increases.

Reason : Lithium carbonates is not so stable to heat ; lithium being very small in size polarizes a large $C{O}_{3}^{2-}$ion leading to the formation of more stable $L{i}_{2}O$ and $C{O}_{2}$.

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