A) - 1 to - 1
B) 0 to - 1
C) 0 to + 5
D) 0 to - 5
Correct Answer: C
Solution :
\[\overset{0\,\,\,}{\mathop{B{{r}_{2}}}}\,\to \overset{+5\,\,\,\,\,\,\,}{\mathop{BrO_{3}^{-}}}\,\], in this reaction oxidation state change from 0 to + 5.
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