Which of the following does not have a metal-carbon bond

Options

(a) Al(OC₂H₅)₃
(b) C₂H₅MgBr
(c) K[Pt(C₂H₄)Cl₃]
(d) Ni(CO)₄

Correct Answer:

Al(OC₂H₅)₃

Explanation:

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