Which of the following orders is not correct as per the property indicated against it

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CsCl < RbCl < KCl < NaCl < LiCl(Lattice Energy)

LiOH < NaOH < KOH(Solubility in water)

Li+ < Na+ < K+ < Rb+ < Cs+ (Size of Hydrated ion)

NaI < NaBr < NaCl < NaF(Lattice Energy)

answer is C.

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Detailed Solution

1) Lattice energy In a series of compound as the oppositely charged ion size increases lattice energy decreases 2) solubility In case of smaller size anion like with small change in cation size there is considerable change in lattice energy and hence the solubility depends on lattice energy.As the size of cation increases, lattice energy decreases and hence solubility increases 3) size of isolated ion : Li+ < Na+ < K+ < Rb+ < Cs+ As the size of isolated ion increases nuclear charge density decreases & hence attraction of water molecules decreases, Therefore of hydration decreases, hence hydrated ion size decreases4) NaF > NaCl > NaBr > NaIIn a series of compound as the oppositely charged ion size increases lattice energy decreases

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