The reversible interconversion between the yellow chromate () and orange dichromate () ions is heavily dependent on the of the surrounding aqueous solution. Which of the following statements chemicall

Question

The reversible interconversion between the yellow chromate ($CrO_4^{2-}$) and orange dichromate ($Cr_2O_7^{2-}$) ions is heavily dependent on the $pH$ of the surrounding aqueous solution. Which of the following statements chemically describe this dynamic equilibrium system?

Prashant Kotian · Accepted Answer

Correct answer: A,C,D. The equilibrium is: . Adding acid () pushes the reaction right, forming orange dichromate. Adding alkali () neutralizes the , pulling the reaction left, forming yellow chromate. Critically, this is strictly not a redox reaction; Chromium remains entirely in the oxidation state in both structural forms.

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