Q45 · CSIR-NET Chemistry, December 2018

Paper: CSIR-NET December 2018 · Subject: Inorganic Chemistry · Chapter: Organometallic Compounds · Topic: Organometallic Compounds – General · Marks: 2 · Difficulty: Hard

The correct order of acceptor ability of the phosphorus ligands is
(a)$\mathrm{PMe}_{3}>\mathrm{PPh}_{3}>\mathrm{P}(\mathrm{OPh})_{3}>\mathrm{PF}_{3}$
(b)$\mathrm{PF}_{3}>\mathrm{P}(\mathrm{OPh})_{3}>\mathrm{PPh}_{3}>\mathrm{PMe}_{3}$
(c)$\mathrm{PF}_{3}>\mathrm{PMe}_{3}>\mathrm{PPh}_{3}>\mathrm{P}(\mathrm{OPh})_{3}$
(d)$\mathrm{P}(\mathrm{OPh})_{3}>\mathrm{PF}_{3}>\mathrm{PMe}_{3}>\mathrm{PPh}_{3}$
Answer
Answer: B ✓ checked by 4AB · confidence high
Explanation
PF₃ > P(OPh)₃ > PPh₃ > PMe₃ (b).

Study loop for Organometallic Compounds

1. Practise the PYQsPrevious-year questions, with answers

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