The following mechanism is proposed for the oxidation of I– by OCl– in aqueous solution: OCl– + H2O — Kinetics Chemistry Question
Question
The following mechanism is proposed for the oxidation of I– by OCl– in aqueous solution:
OCl– + H2O ⇌ HOCl + OH– fast, reversible
HOCl + I– → HOI + Cl– slow
HOI + OH– ⇌ OI– + H2O fast, reversible
What reaction orders for OCl–, I–, and OH– are consistent with this mechanism?
A.
Order in OCl– = 1, Order in I– = 1, Order in OH– = 1
B.
Order in OCl– = 1, Order in I– = 1, Order in OH– = 0
C.
Order in OCl– = 1, Order in I– = 0, Order in OH– = 0
D.✓ Correct
Order in OCl– = 1, Order in I– = 1, Order in OH– = -1
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