2017 · Q44
The molecular mass of sulphuric acid is 98. If 49 g of the acid is dissolved in water to make one litre of solution, what will be the strength of the acid?
General KnowledgeChemistry
- ATwo normal
- BOne normal
- C0.5 normal
- DFour normal
Explanation
49 g of H₂SO₄ (molar mass 98) = 0.5 mol in 1 L → 0.5 M. Sulphuric acid is dibasic (two replaceable H⁺), so normality = 2 × 0.5 = 1 N. Hence ‘One normal’ = B.