In hydrofomylation reaction using [Rh (PPh₃)₂(CO)(H)] as the catalyst, addition of excess PPh₃, would · ABC26IN1372
Subject: Inorganic Chemistry · Chapter: Organometallic Compounds · Topic: Oxidative Addition Reductive Elimination · Exam: CSIR NET DEC 2012 · Marks: 2 · Difficulty: Medium
In hydrofomylation reaction using $\left[\mathrm{Rh}\left(\mathrm{PPh}_{3}\right)_{2}(\mathrm{CO})(\mathrm{H})\right]$ as the catalyst, addition of excess $\mathrm{PPh}_{3}$, would
(a)increase the rate of reaction
(b)decrease the rate of reaction.
(c)not influence of the rate of reaction
(d)stop the reaction.
Answer
Answer: B ✓ checked by 4AB · confidence high
Explanation
Excess PPh₃ suppresses ligand dissociation and lowers the rate (b).