Multiple choice

Which of the following combinations of salts and their uses is incorrect?

  1. Silver nitrate - To develop photographic films

  2. Calcium carbonate - In marbles for flooring

  3. Sodium bicarbonate - To make chalk

  4. Ammonium nitrate - In explosives

  5. Sodium carbonate - In detergents

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Calcium carbonate is used to make chalk. Sodium bicarbonate is used in bakery and medicines.