In presence of which catalyst do we get nitriles from aldehydes?

In presence of which catalyst do we get nitriles from aldehydes? Correct Answer Cu-Zn

Nitriles can be obtained by the ammonolysis of aldehydes in the presence of Cu-Zn catalyst and around 300-350’C and also that cobalt or copper and zinc are specific catalysts for the preparation of nitriles by reacting aldehydes and ammonia.
Bissoy MCQ

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