Q10 / 50 · Manipal (MET) 2023 · Chemistry

The hydroxide of alkaline earth metal not soluble in water is

A
magnesium hydroxide
B
calcium hydroxide
Correct answer
C
beryllium hydroxide
D
barium hydroxide

Solution

As we move down the group, solubility increases. $\mathrm{So}, \mathrm{Be}(\mathrm{OH})_2$ is insoluble and $\mathrm{Ba}(\mathrm{OH})_2$ is highly soluble in water.

Hence, the correct answer is option: 'C'.

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