Question

If pH of a solution containing an acid 'X' is 2 and pH of another solution containing a base 'Y' is 8. What is formed when X and Y are reacted with each other?

• A. Acidic salt
• B. Neutral salt
• C. Basic salt
• D. Amphoteric salt

Answer 1

The correct option is A Acidic salt

X is a strong acid (as pH is close to 1). Y is weak base (as pH is close to 7). Thus, when strong acid and weak base react, an acidic salt is formed.
For example:
$\text{HCl (aq)}+{\text{NH}}_4\text{OH (aq)}\to {\text{NH}}_4\text{Cl (aq)}+{\text{H}}_2\text{O (l)}$

Here, $\text{HCl}$ and ${\text{NH}}_4\text{OH}$ are the strong acid and weak base respectively.