ABC26IN0283 · Organometallic Compounds
Subject: Inorganic Chemistry · Chapter: Organometallic Compounds · Topic: Oxidative Addition Reductive Elimination · Exam: CSIR-NET 2019 · Marks: 2 · Difficulty: Medium
The rate-determining step in the catalytic synthesis of acetic acid by Monsanto process is
(a)oxidative addition of $\mathrm{CH_3I}$ to $\mathrm{[RhI_2(CO)_2]^{-}}$
(b)migration of $\mathrm{CH_3}$ group to CO of $\mathrm{[RhI_3(CO)_2(CH_3)]^{-}}$
(c)loss of $\mathrm{CH_3COI}$ from $\mathrm{[RhI_3(CO)_2(COCH_3)]^{-}}$
(d)coordination of CO to $\mathrm{[RhI_3CO(COCH_3)]^{-}}$
Answer
Explanation
This step is the slowest step and hence rate-determining step.
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