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When $BrO 3 −$ Ion reacts with $Br −$ in acid medium $B r 2$ is liberated. The equivalent mass of $B r 2$ in this reaction is

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4 M 6

5 M 3

5 M 8

3 M 5

answer is C.

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Detailed Solution

2 BrO 3 − + 12 H + + 10 Br − → 6 Br 2 + 6 H 2 O

10 mole of e‐ are required for formation of 6 moles of

Br 2

∴ n - f a c t o r o f B r 2 = 106 = 53

e q . w t . = m o l . w t . n = m 5 / 3 = 3 M 5

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