The number of sigma bonds in Ziese's salt,[Pt | vedclass

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Question

(D) Ziese's salt is $[PtCl_3(C_2H_4)]^-$.In the ethylene ligand $(C_2H_4)$,there are $4$ $C-H$ sigma bonds and $1$ $C-C$ sigma bond.There are $3$ $Pt-

Vedclass · Accepted Answer

$10$

Vedclass · Answer

(D) Ziese's salt is $[PtCl_3(C_2H_4)]^-$.In the ethylene ligand $(C_2H_4)$,there are $4$ $C-H$ sigma bonds and $1$ $C-C$ sigma bond.There are $3$ $Pt-Cl$ sigma bonds.The interaction between $Pt$ and the ethylene ligand involves a coordinate bond (sigma donation from the $\pi$-bond of ethylene to $Pt$),which counts as $1$ sigma bond.Total sigma bonds = $4$ $(C-H)$ + $1$ $(C-C)$ + $3$ $(Pt-Cl)$ + $1$ $(Pt-ethylene)$ = $9$ sigma bonds.Since $9$ is not among the options,the correct answer is $D$ (none of these).

The number of sigma bonds in Ziese's salt,$[PtCl_3(C_2H_4)]^-$,is:

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