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Q.

Select the correct statement(s).

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a

NaOH does not form hydrated salt

b

Stability of peroxides and superoxides of alkali metals increases with increase in size of the metal ion

c

Stability of MO2 and M2O2 is due to stabilisation of larger anions by larger cations through lattice energy effects

d

The low solubility of LiF is due to its high lattice energy whereas low solubility of CsI is due to relatively smaller hydration energy

answer is B.

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Detailed Solution

(1) NaOH is crystalline deliquescent solid hence, it forms hydrated salt.Thus, it is incorrectperoxides and superoxides have larger anions hence they stablize only with larger cations
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