MCQ
Which are the dissimilarities between $CO$ and $PF_3$
- A$PF_3$ is a $\sigma-$ donor, $\pi-$ acceptor while $CO$ is $\pi-$ donor, $\pi-$ acceptor towards a metal/ metal ion in a complex
- B$CO$ is toxic while $PF_3$ is nontoxic
- C$CO$ is odourless while $PF_3$ has pungent odour
- ✓$CO$ acepts back donation into its $\pi^*$ orbital while $PF_3$ accepts back donation into its $3d$ orbital in a complex
