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Which metal catalyst is used in amination of aromatic halogen compound?

Which metal catalyst is used in amination of aromatic halogen compound? Correct Answer All of the mentioned

In reaction of amination of aromatic halogens, some metals or compounds of metals following hydrogen in the electromotive series are advantageously used as catalysts (e.g., copper, arsenic, and silver) and Copper, copper oxides, and copper salts are most widely used.

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