🧪 TheChemSolverUSNCO / General Chemistry
KineticsMCQ

Iodide ion is oxidized by acidified dichromate ions as shown in this equation. Cr2O7 2–(aq) + 9I–(aq — Kinetics Chemistry Question

Question

Iodide ion is oxidized by acidified dichromate ions as shown in this equation.
Cr2O7 2–(aq) + 9I–(aq) + 14H+(aq) → 2Cr3+(aq) + 3I3 –(aq) + 7H2O(l)
These data were obtained when the reaction was studied at a constant pH.

What is the order of the reaction with respect to Cr2O7 2–(aq) and I–(aq)?

A.

first order with respect to both Cr2O7 2– and I–

B.

second order with respect to both Cr2O7 2– and I–

C.

second order with respect to Cr2O7 2– and first order with respect to I–

D.

first order with respect to Cr2O7 2– and second order with respect to I–

✓ Correct
💬
Still have doubts about this question?
Practice more questions like this, completely free.

Practice USNCO / General Chemistry questions like this — free

4,000+ questions across AP Chemistry, USNCO, and IChO — all free, no signup required.

Explore AP Chemistry →Try Interactive Labs