NEET Chemistry: Salt questions with solutions

Q1. An aqueous solution of salt is alkaline. This shows that salt is made from:

1. a strong acid and a strong base
2. a strong acid and a weak base
3. a weak acid and a weak base
4. a weak acid and a strong base

Answer: a weak acid and a strong base

A salt solution is alkaline when the anion reacts with water to produce OH⁻. That happens when the salt comes from a weak acid and a strong base, because the weak acid’s conjugate base is basic in water.