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) is a neutral salt and has a pH close to 7.
- Ammonium chloride (B) is an acidic salt and will have a pH less than 7.
- Sodium carbonate (C) is a basic salt and will have a pH greater than 7.
Thus, the ascending order of pH is \( B<C<A \).