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Questions  

Select the correct statement(s).

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

detailed solution

Correct option is B

(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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