A) zero to +5
B) +1 to +5
C) zero to -3
D) +2 to -1-5
Correct Answer: A
Solution :
Bromine has zero oxidation state because it is in free state \[B{{\overset{0}{\mathop{r}}\,}_{2}}\xrightarrow{{}}BrO_{3}^{-}\] \[BrO_{3}^{-}\] \[x+(-2\times 3)=-1\] \[x+(-6)=-1\] \[x=+\,6-1\] \[=+\,5\] So, oxidation number changes from 0 to + 5.You need to login to perform this action.
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