Salt Formation , Application with Game Score : Class 10 chemistry

Formation and Uses of Six Common Salts – Explained with Game and Applications

Introduction:
Salts are chemical compounds formed when an acid reacts with a base and water is produced as a byproduct. This neutralization reaction is fundamental to many natural and industrial processes. Let’s explore six important salts, their methods of preparation, and how they are used in daily life and industries.

1. Sodium Chloride (NaCl)

Preparation: By neutralizing hydrochloric acid with sodium hydroxide.
HCl + NaOH → NaCl + H₂O

Uses: Common table salt, food preservation, and used in saline solutions in medicine.

2. Copper(II) Sulfate (CuSO₄)

Preparation: Reacting copper oxide with sulfuric acid.
CuO + H₂SO₄ → CuSO₄ + H₂O

Uses: Used in fungicides, electroplating, and educational experiments.

3. Sodium Carbonate (Na₂CO₃)

Preparation: Through the Solvay process using ammonia and carbon dioxide.
NaCl + NH₃ + CO₂ + H₂O → NaHCO₃ → Na₂CO₃

Uses: In detergents, glass-making, and softening hard water.

4. Potassium Nitrate (KNO₃)

Preparation: By neutralizing nitric acid with potassium hydroxide.
KOH + HNO₃ → KNO₃ + H₂O

Uses: Used in fertilizers, fireworks, and gunpowder.

5. Calcium Sulfate (CaSO₄)

Preparation: Reaction of sulfuric acid with calcium carbonate.
CaCO₃ + H₂SO₄ → CaSO₄ + CO₂ + H₂O

Uses: In plaster of Paris, dental molds, and construction.

6. Ammonium Nitrate (NH₄NO₃)

Preparation: By neutralizing nitric acid with ammonia.
NH₃ + HNO₃ → NH₄NO₃

Uses: Fertilizers, cold packs, and explosives under controlled use.

Interactive Game: Salt Formation Challenge

Match the correct acid and base to form a salt. Score points for each correct combination!

Select an Acid:

HCl

H₂SO₄

HNO₃

Select a Base:

NaOH

KOH

NH₃

Score: 0