When dilute H_2SO_4 is added to an aqueous so | vedclass

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(C) The reaction between potassium chromate $(K_2CrO_4)$ and dilute $H_2SO_4$ is as follows:$2CrO_4^{2-} (aq) + 2H^+ (aq) \rightleftharpoons Cr_2O_7^{

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Monocentric complex is converted into a dicentric complex.

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(C) The reaction between potassium chromate $(K_2CrO_4)$ and dilute $H_2SO_4$ is as follows:$2CrO_4^{2-} (aq) + 2H^+ (aq) \rightleftharpoons Cr_2O_7^{2-} (aq) + H_2O (l)$In this reaction,the yellow chromate ion $(CrO_4^{2-})$ is converted into the orange dichromate ion $(Cr_2O_7^{2-})$.The chromate ion is a monocentric species (containing one $Cr$ atom),while the dichromate ion is a dicentric species (containing two $Cr$ atoms).Therefore,the color change indicates that the monocentric complex is converted into a dicentric complex.

When dilute $H_2SO_4$ is added to an aqueous solution of potassium chromate,the yellow color of the solution turns to orange. What does this indicate?

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