The Wacker process is a highly vital industrial catalytic pathway used globally to oxidize ethene () directly into ethanal () in the presence of water and air. This process fundamentally relies on a s

Question

The Wacker process is a highly vital industrial catalytic pathway used globally to oxidize ethene ($C_2H_4$) directly into ethanal ($CH_3CHO$) in the presence of water and air. This process fundamentally relies on a specific transition metal chloride catalyst. What is the precise integer oxidation state of the central Palladium ($Pd$) atom in the active starting catalyst ($PdCl_2$) employed in this process?

Prashant Kotian · Accepted Answer

Correct answer: 2. The Wacker process explicitly utilizes Palladium(II) chloride () as the primary homogenous catalyst, often coupled with as a co-catalyst to re-oxidize the Palladium. In the starting catalyst compound , the two chloride ligands each carry a formal charge. To maintain electrical neutrality, the central Palladium atom must possess a formal oxidation state of exactly .

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