What change will occur to the equilibrium mixture
\( 2CrO^{2-}_4(aq) + 2H^+(aq) ⇔ Cr_2O^{2-}_7(aq) + H_2O(l) \) when excess sodium hydrogen solution is added?

A yellow precipitate of Cr(OH)3 is formed

An orange precipitate of Cr(OH)3 is formed

The colour changes from orange to yellow

The colour changes from yellow to orange

There is no visible reaction.

Correct answer is C

No explanation has been provided for this answer.

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