MCQ
The strongest acid amongst the following is
  • $HCl{O_4}$
  • B
    $HCl{O_3}$
  • C
    $HCl{O_2}$
  • D
    $HClO$

Answer

Correct option: A.
$HCl{O_4}$
a
(a) 

 $ + 7$               $ + 5$                 $ + 3$                 $ + 1$

$HCl{{O}_{4}}>$   $HCl{{O}_{3}}>$    $HCl{{O}_{2}}>$   $HClO$

As the oxidation no. of halogen increases acidic character increases.

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