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When Cl(2) gas reacts with hot and conce...

When `Cl_(2)` gas reacts with hot and concentrated sodium hydroxide solution, the oxidation number of chlorine changes from

A

zero to +1 and zero to -5

B

zero to -1 and zero to +5

C

zero to -1 and zero to +3

D

zero to +1 and zero to -3

Text Solution

Verified by Experts

The correct Answer is:
B
When chlorine gas reacts with hot and concentrated `NaOH` solution, it disprotionates into chloride `(Cl^(-))` and chlorate `(ClO_(3)^(-))` ions.

It this process, oxidation number of chlorine changes from 0 to `-1` and `0` to `+5`.
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