1. Tardigrade
  2. Question
  3. Chemistry
  4. The correct order of hydration enthalpies is (A) K + (B) Rb + (C) Mg 2+ (D) Cs + (E) Ca 2+ Choose the correct answer from the options given below:

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Q. The correct order of hydration enthalpies is
(A) $K ^{+}$
(B) $Rb ^{+}$
(C) $Mg ^{2+}$
(D) $Cs ^{+}$
(E) $Ca ^{2+}$
Choose the correct answer from the options given below:

JEE MainJEE Main 2023Classification of Elements and Periodicity in Properties

Solution:

Hydration enthalpies:
(i) $K ^{\prime}> Rb ^{\prime}> Cs ^{\prime}$ : (A) $>$ (B) $>$ (D)
(ii) $Mg ^{+2}> Ca ^{+2} : (C) > (E) $
Option (D)
$( C )>( E )>( A )>( B )>( D )$