Among the following hydroxides, highest solubility in water will be shown by:
Mg(OH)2
Be(OH)2
Ca(OH)2
Ba(OH)2
A
Be(OH)2
B
Mg(OH)2
C
Ca(OH)2
D
Ba(OH)2
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Solution
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In alkaline earth metal hydroxides, Ksp increases down the group. So, Ba(OH)2 is the most soluble in water.
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