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Question
What is the basicity of sulphuric acid. Give the equations involved?
Short Answer
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Solution
Sulphuric acid is a dibasic acid because one molecule of the acid yields two hydronium (H3O+) ions upon complete ionization in water.
Equations: It ionizes in two sequential steps:
\[\ce{H2SO4 + H2O <=> H3O+ + HSO^-4}\] (Bisulphate ion formation)
\[\ce{HSO^-4 + H2O <=> H3O+ + SO^{2-}4}\] (Sulphate ion formation)
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