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Question

The oxidation state of chlorine in chlorous acid is:


A
+ 2
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B
+ 3
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C
- 1
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D
- 2
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Solution

The correct option is B + 3
Chlorous acid = $$\overset{+1\ +3\ -4}{HClO_{2}}$$
Let oxidation state of chlorine be x.
$$\therefore{x}+1+2(-2)=0$$
Here oxidation state of oxygen is -2 and that of hydrogen is +1.
$$\therefore x=+3$$
oxidation state in chlorous acid of chlorine is +3.

Chemistry

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