What change will occur to the equilibrium mixture \( 2CrO^{2-}_4(aq) + 2H^+(aq) ⇔ Cr_2O^{2-}_7(aq) +…

Home » Past Questions » Chemistry » Neco » 2003 » What change will occur to the equilibrium mixture \( 2CrO^{2-}_4(aq) + 2H^+(aq) ⇔ Cr_2O^{2-}_7(aq) +…
Chemistry NECO 2003

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 checkmark
  • The colour changes from yellow to orange
  • There is no visible reaction.

The correct answer is: C

Explanation

No official explanation is available for this question at this time. Please check contributions posted by others below. If you can provide an explanation to help other student learn.
Previous Question Next Question

Leave A Comment