Question

The correct order of hydration enthalpies of alkali metal ions is:
(A) Li⁺ > Na⁺ > K⁺ > Cs⁺ > Rb⁺ (B) Na⁺ > Li⁺ > K⁺ > Rb⁺ > Cs⁺
(C) Na⁺ > Li⁺ > K⁺ > Cs⁺ > Rb⁺ (D) Li⁺ > Na⁺ > K⁺ > Rb⁺ > Cs⁺

Answer 1

Answer:

option A)

Explanation:

ANSWER

Solution:- (A) Li⁺ > Na⁺ > K⁺ > Cs⁺ > Rb⁺

Hydration enthalpy depends upon ionic potential (charge/ size). As ionic potential increases hydration enthalpy increases.

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