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Question

What will be the acidity of Magnesium hydroxide?

A
1
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B
\N
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C
2
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D
3
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Solution

The correct option is C 2
The acidity of any polyacidic base is the number of ionizable hydroxyl ion.
Magnesium hydroxide is a base and it dissociates as follows in solution.
Mg(OH)2(aq)Mg2+(aq)+2OH(aq)
Since it releases 2 hydroxyl ions, it acidity is 2.

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