Question Detail

CHM 102 Group II Objective Question
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Question

The solubility trend of Group II sulphates is primarily attributed to which factor?
Options
A Decreasing lattice energy down the group.
B Increasing ionic radius down the group.
C High enthalpy of solvation of smaller ions (Be²⁺ and Mg²⁺).
Correct Answer
D Increasing stability of sulphates down the group.
Correct Answer

Option C is the correct answer.

Detailed Explanation

Page 13 clearly states, 'Solubility trend is due to the high enthalpy of solvation of the smaller Be²⁺ and Mg²⁺ ions.'

Hint

Consider the energy changes involved when an ionic compound dissolves in water.

Question Info

Course: CHM 102
Topic: Group II
Type: Objective
Difficulty: Not specified
Question 1991 of 1999
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