The correct order of hydration enthalpies is (A) K+ (B) Rb+ (C) Mg2+ (D) Cs+ (E) Ca2+ Choose the correct answer from the options given below: (A) C E A B D (B) C E A D B (C) C A E

Question

The correct order of hydration enthalpies is (A) K+ (B) Rb+ (C) Mg2+ (D) Cs+ (E) Ca2+ Choose the correct answer from the options given below:

(A) C > E > A > B > D
(B) C > E > A > D > B
(C) C > A > E > B > D
(D) E > C > A > B > D

Prashant Kotian · Accepted Answer

Correct answer: A. Mg2+ > Ca2+ > K+ > Rb+ > Cs+ Decreasing the size, hydration energy increases.

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