Redox Reaction Subtopic Half Reaction Method 01 Ques10
Question: In the half-reaction $ClO_3^- + 6H^+ + 6e^- \rightarrow Cl^- + 3H_2O$ , what is the oxidation state change of chlorine?
Options:
A) +5 to -1
B) +7 to -1
C) +3 to -1
D) +1 to -1
Show Answer
Answer: a
Explanation:
A) Correct. In $ClO_3^-$, Cl has an oxidation state of +5, and in $Cl^-$, it’s -1.
B) The initial oxidation state is not +7.
C) The initial oxidation state is not +3.
D) The initial oxidation state is not +1.