Question

What granulated zinc is preferred to metallic in the preparation of hydrogen using dilute acid

Answer 1

hey mate

here is your answer

granulated zinc is preferred to the other metals in the preparation of hydrogen using dilute acids because as granulated zinc contains copper as impurity which acts as a catalyst in this reaction. thereby increasing the rate of reaction.


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Answer 2

hi dear

bcz it contains copper , which act as a catalyst ..
and increase the rate of reaction