Question:medium
Which of the following is the correct order of acidic strength for the following compounds: HNO\(_3\), HClO\(_4\), and HClO\(_3\)?
Which of the following is the correct order of acidic strength for the following compounds: HNO\(_3\), HClO\(_4\), and HClO\(_3\)?
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For oxyacids, the acidic strength generally increases with the number of oxygen atoms attached to the central atom and the electronegativity of the central atom.
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Updated On: Apr 1, 2026
- HClO\(_4\) \textgreater HNO\(_3\) \textgreater HClO\(_3\)
- HNO\(_3\) \textgreater HClO\(_3\) \textgreater HClO\(_4\)
- HClO\(_3\) \textgreater HNO\(_3\) \textgreater HClO\(_4\)
- HClO\(_4\) \textgreater HClO\(_3\) \textgreater HNO\(_3\)
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The Correct Option is A
Solution and Explanation
Oxyacid strength, such as for HNO3, HClO4, and HClO3, is determined by the central atom's electronegativity and the count of attached oxygen atoms. Acids are stronger with more oxygen atoms and a more electronegative central atom.
- HClO4 exhibits the greatest acidity due to chlorine's high electronegativity and its maximal oxygen atom attachment.
- HNO3 surpasses HClO3 in strength, attributed to nitrogen's higher electronegativity compared to chlorine, and nitric acid possessing a greater number of oxygen atoms than chlorous acid.
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