Redox Reactions And Electrochemistry Ques 704

Question: In the reaction $ 3Br_2+6CO_3^{2-}+3H_2O\xrightarrow{{}} $ $ 5B{{r}^{-}}+BrO_3^{-}+6HCO_3^{-} $

Options:

A) bromine is oxidised and carbonate is reduced.

B) bromine is reduced and water is oxidized

C) bromine is neither reduced nor oxidized

D) bromine is both reduced and oxidized

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Answer:

Correct Answer: D

Solution:

[d] $ 3Br_2+6CO_3^{2-}+3H_2O\to $ $ 5B{{r}^{-}}+BrO_3^{-}+6HCO_3^{-} $ O.N. of $ Br_2 $ changes from 0 to -1 and +5 hence it is reduced as well as oxidised.



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