Question

The acidity of $Mg{(OH)_2}$ is two
Reason:
The acidity of a base is equal to the number of hydroxyl ions present.
A.Both the assertion and reason are correct and the reason is the correct explanation of for assertion.
B.Both assertion and reason are correct but the reason is not the correct explanation of assertion.
C.Assertion is correct but reason is not correct.
D.Both the assertion and reason are correct.

Answer 1

Hint: For determining the acidity of the bases we need to keep a count at the hydroxyl ions present. Further we can conclude that the acidity of a substance for that as we know that the pH determines or gives indication of acidity of a substance.

Complete answer:
Firstly we to know is what is acidity
The acidity of a substance .For that as we know that the pH determines or gives s indication of acidity of a substance. Also , when we talk about the basicity then we should know that it is determined as the more the available electron the more they can donate to form the new bond.
How the acidity of a base is determined?
The answer is this is that the acidity in bases can be determined as the number of hydroxyl ions which can be produced per mol of a solution .

So ,accordingly we can say that the option “a” is correct that states that Both the assertion and reason are correct and the reason is the correct explanation of for assertion.

Additional information:
We have already talked about the acidity of a base .so, now we will talk about the basicity of an acid.
The basicity of an acid is defined as the number of hydronium ions that can be produced by the ionisation of one molecule of that acid I the aqueous solution.

Note:
In order to determine either the acidity or the basicity we need to keep the entire reaction or the compound in mind while calculating.