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Redox Reactions question

2004 · Q117
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Redox Reactions question

2004 · Q117

NEETChemistryRedox ReactionsMCQ+4 / −1
Which is the best description of the behaviour of bromine in the reaction given below?
H2O + Br2 →\to→ HOBr + HBr
  1. A
    Proton acceptor only
  2. B
    Both oxidised and reduced
  3. C
    Oxidised only
  4. D
    Reduced only
View written solutionFree

Correct answer: B

H2O + Br0{\mathop {Br}\limits^0}Br02 →\to→ HOBr+1\mathop {Br}\limits^{ + 1} Br+1 + HBr−1\mathop {Br}\limits^{ - 1} Br−1

In the above reaction the oxidation number of Br2 increases from zero (in Br2 ) to +1 (in HOBr) and decreases from zero (in Br2 ) to –1 (in HBr). Thus Br2 is oxidised as well as reduced and hence it is a redox reaction.

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