Q14.95P - Chemistry: Molecular Nature Of Matter And Change

Question

Question: Assuming acid strength relates directly to the electronegativity of the central atom, rank H₃PO₄,HNO₃ , and H₃ASO₄ in order of increasing acid strength.

Step-by-Step Solution

Answer

Answer

Step 1: Definition of Electronegativity

Electronegativity of an atom is defined as the tendency of an atom to attack the electrons.

In the periodic table as we move from right to left in a period electronegativity goes on increasing. While in a group as we move downward electronegativity is decreases. This is the general trend found in the periodic table. The relation of acidic character with electronegativity is as follows;

Electronegativity $\alpha$acidic character

Step 2: Acidic strength of given acid

The relation of acidic character with electronegativity is as follows;

Electronegativity $\infty$ acidic character