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Olympiad workbook

Exam: Olympiad workbook
Subject: NSEC
Chapter: Redox Reactions

Olympiad workbook · NSEC · Redox Reactions

Br_2 disproportionates to Br^ - and BrO_3^ - in a hot alkaline...

\mathrm{Br}_2

disproportionates to

\mathrm{Br}^{-}

and

\mathrm{BrO}_3^{-}

in a hot alkaline solution as

3 \mathrm{Br}_2+6 \mathrm{OH}^{-} \rightarrow 5 \mathrm{Br}^{-}+\mathrm{BrO}_3^{-}+3 \mathrm{H}_2 \mathrm{O}

The equivalent weight of

\mathrm{Br}_2

is: \left(\mathrm{M}=\right.

molar mass of \left.\mathrm{Br}_2\right)

Options

A $\mathrm{M} / 5$
B $\mathrm{M} / 6$
C $3 \mathrm{M} / 5$
D $5 \mathrm{M} / 3$

Correct answer

C. $3 \mathrm{M} / 5$

Step-by-step solution

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