1.

In the conversion \[B{{r}_{2}}\,\to \,BrO_{3}^{-},\] the oxidation state of bromine changes from [EAMCET 1990; AMU 1999; RPMT 2002]

A. - 1 to - 1             
B. 0 to - 1
C. 0 to + 5
D. 0 to - 5
Answer» D. 0 to - 5


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