Q71 / 160 · JIPMER 2006 · Chemistry

Which among the following is strongest acid?

  • A
    $\mathrm{H}(\mathrm{ClO}) \mathrm{O}_2$
  • Correct answer
    B
    $\mathrm{H}(\mathrm{ClO}) \mathrm{O}_3$
  • C
    $\mathrm{H}(\mathrm{ClO}) \mathrm{O}$
  • D
    $\mathrm{H}(\mathrm{ClO})$

Solution

We know that acidic strength $\propto$ Oxidation number $\therefore$ Correct order is $\stackrel{+1}{\mathrm{HClO}} \lt \stackrel{+3}{\mathrm{HClO}_2} \lt \stackrel{+5}{\mathrm{HClO}}_3 \lt \stackrel{+7}{\mathrm{HClO}_4}$

Hence, the correct answer is option: 'B'.

Relevant Questions