Granulated zn is preferred to metallic zn in the preparation of hydrogen because granulated zinc has more surface area exposed to the acid, so the reaction can occur more rapidly.

Granulated zn is preferred to metallic zn in the preparation of hydrog

1.	Granulated zn is preferred to metallic zn in the preparation of hydrogen because granulated zinc has more surface area exposed to the acid, so the reaction can occur more rapidly.
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