Question

You have three aqueous solutions A, B and C as given below:
A - Potassium nitrate
B - Ammonium chloride
C - Sodium carbonate
The ascending order of the pH of these solutions is:

• A. \( A<B<C \)
• B. \( B<C<A \)
• C. \( C<A<B \)
• D. \( B<A<C \)

Hint:

- Ammonium chloride produces an acidic solution in water. - Sodium carbonate produces a basic solution in water.

Answer 1

The Correct Option is B

Potassium nitrate (A), a neutral salt, has a pH around 7.
Ammonium chloride (B), an acidic salt, exhibits a pH below 7.
Sodium carbonate (C), a basic salt, has a pH exceeding 7.

Therefore, the pH values increase in the order of \( B<C<A \).