Which one is the oxidising agent in the react | vedclass

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(D) In the given reaction: $2CrO_4^{2-} + 2H^{+} 	o Cr_2O_7^{2-} + H_2O$,we observe the oxidation states of the elements involved.For $Cr$ in $CrO_4^

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None of these

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(D) In the given reaction: $2CrO_4^{2-} + 2H^{+} 	o Cr_2O_7^{2-} + H_2O$,we observe the oxidation states of the elements involved.For $Cr$ in $CrO_4^{2-}$,the oxidation state is $x + 4(-2) = -2$,so $x = +6$.For $Cr$ in $Cr_2O_7^{2-}$,the oxidation state is $2x + 7(-2) = -2$,so $2x = +12$,$x = +6$.Since there is no change in the oxidation state of any element,this is not a redox reaction.Therefore,there is no oxidising agent or reducing agent present in this reaction.

Which one is the oxidising agent in the reaction below?
$2CrO_4^{2-} + 2H^{+} \to Cr_2O_7^{2-} + H_2O$

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Which one is the oxidising agent in the reaction below?$2CrO_4^{2-} + 2H^{+} \to Cr_2O_7^{2-} + H_2O$