Which are the dissimilarities between CO and PF_3 - Vidyadip

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

✓

Answer

Correct option: D.

$CO$ acepts back donation into its $\pi^*$ orbital while $PF_3$ accepts back donation into its $3d$ orbital in a complex

d

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