Oxygen is more electronegative than chlorine. In the series of oxyacids \( \mathrm{HOCl}, \mathr...

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Oxygen is more electronegative than chlorine. In the series of oxyacids \( \mathrm{HOCl}, \mathrm{HClO}_{2}, \mathrm{HClO}_{3}, \mathrm{HClO}_{4} \) an increasing number of oxygen atom are bonded to the chlorine atom.

Chlorine forms a number of oxyacids which differ in their strengths. The conjugate base of these acids also differ in their stability order.

The order of acidic strength of \( \mathrm{HOCl}, \mathrm{HClO}_{2}, \mathrm{HClO}_{3} \), and \( \mathrm{HClO}_{4} \) are:
(a) \( \mathrm{HClO}_{4}\mathrm{HClO}_{3}\mathrm{HClO}_{2}\mathrm{HClO} \)
(b) \( \mathrm{HClO}\mathrm{HClO}_{2}\mathrm{HClO}_{3}\mathrm{HClO}_{4} \)
(c) \( \mathrm{HClO}_{3}\mathrm{HClO}_{4}\mathrm{HClO}_{2}\mathrm{HClO} \)
(d) \( \mathrm{HClO}_{3}\mathrm{HClO}_{2}\mathrm{HClO}\mathrm{HClO}_{4} \)
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