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A 5 molar solution of H₂SO₄ is diluted from 1 litre to a volume of 10 litres, the normality of the solution will be:

1. 1 N
2. 0.1 N
3. 5 N
4. 0.5 N

Correct answer: 1 N

Solution

The normality (N) of H₂SO₄ is calculated as molarity (M) × basicity. The initial molarity is 5 M, and the basicity of H₂SO₄ is 2. After dilution, the molarity becomes 0.5 M (5 M × 1/10). Thus, normality = 0.5 × 2 = 1 N.

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