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Question

Mixture of KBr and KBrO3 in acidic medium can be used as brominating agent.

The chemical reaction is, 5Br+xBrO3+6H+3Bry+3H2O
Then x+y is :

A
6
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B
3
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C
5
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D
11
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Solution

The correct option is C 3
Reaction of process:

5Br+BrO3+6H+3Br2+3H2O
-1 +5 0
x = 1 ,y = 2

x+y = 3

Here, bromide ion oxidises and BrO3 reduces and bromine forms as a product.

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