Oxidation state of chlorine in perchloric acid is - Vidyadip

Question

Oxidation state of chlorine in perchloric acid is

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Answer

$\mathop {HCl{O_4}}\limits^ * $

$1 + x - 2 \times 4 = 0;\,\,1 + x - 8 = 0$
$x = 8 - 1 = + 7$ oxidation state.

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