Which of the following acts as an acid in sulphuric acid ?
Which of the following acts as an acid in sulphuric acid ?
A. `HNO_(3)`
B. `H_(3)PO_(4)`
C. Water
D. `HClO_(4)`
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Correct Answer - D
`HClO_(4)` acts as an acid in conc. `H_(2)SO_(4)` because it gives a proton to `H_(2)SO_(4)`.
`HClO_(4) + H_(2)SO_(4) rarr ClO_(4)^(-) + [H_(3)SO_(4)]^(+)`
`HNO_(3), H_(3)PO_(4)` and `H_(2)O` act as bases in conc. `H_(2)SO_(4)`
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