Show the dissociation of the following compounds on dissolving in water, with the help of chemical equation and write whether the proportion of dissociation is small or large.

Hydrochloric acid, Sodium chloride, Potassium hydroxide, Ammonia, Acetic acid, Magnesium chloride, Copper sulphate.

1. Dissociation of hydrochloric acid in water

HCl → H⁺ + Cl^-

The proportion of dissociation is large as 100% of the HCl dissociates into ions.

2. Dissociation of sodium chloride in water

NaCl → Na⁺ + Cl^-

The proportion of dissociation is large as it completely dissolves in water.

3. Dissociation of potassium hydroxide in water

KOH → K⁺ + OH^-

The proportion of dissociation is large as it completely dissolves in water.

4. Dissociation of ammonia in water

NH₃ + H₂O → NH₄⁺ + OH^-

The proportion of dissociation is large as it completely dissolves in water sue to formation of hydrogen bonding.

5. Dissociation of acetic acid in water

CH₃COOH → CH₃COO^- + H⁺

The proportion of dissociation is small.

6. Dissociation of magnesium chloride in water

MgCl₂→ Mg²⁺ + Cl^-

The proportion of dissociation is large as magnesium chloride is highly soluble in water.

7. Dissociation of copper sulphate in water

CuSO₄→ Cu²⁺ + SO₄^2-

The proportion of dissociation is medium.