Question

Asappp In which of the following reactions is chlorine (ci) oxidized?

A. Br2 + 2ci” = ci2 +2Br”
B. Ci2 + 2e” = 2ci”
C. 2cio3” + 12h+ = ci2 + 6h2o
D. 2na + ci2 = 2naCi

Answer 1

Answer: Option (A) is the correct answer.

Step-by-step explanation:

When there is an increase in oxidation state or release of electron from an atom then this process is known as oxidation.

In the reaction,
`Br_(2) + 2Cl^(-) \rightarrow Cl_(2) + 2Br`, the oxidation and reduction equations are as follows.

Reduction:
`Br_(2) + 2e^(-) \rightarrow 2Br`

Oxidation:
`2Cl^(-) \rightarrow Cl_(2) + 2e^(-)`

Also, in the above reaction, oxidation state of chlorine increases from -1 to 0. Therefore, chlorine is oxidized in this reaction.

In the reaction,
`Cl_(2) + 2e^(-) \rightarrow 2Cl`, the oxidation state of chlorine reduces from 0 to -1. Therefore, chlorine is reduced in this reaction.

In the reaction,
`2ClO_(3) + 12H^(+) \rightarrow Cl_(2) + 6H_(2)O`, the oxidation state of chlorine reduces from +6 to 0. Therefore, chlorine is reduced in this reaction.

In the reaction,
`2Na + Cl_(2) \rightarrow 2NaCl`, the oxidation state of chlorine reduces from 0 to -1. Therefore, chlorine is reduced in this reaction.