Question

zinc liberates hydrogen gas when reacted with dilute hydrochloric acid whereas copper doesnot?explain why

Answer 1

It is because the reactivity series of metals tells us that zinc is more reactive than hydrogen whereas copper is not. In a displacement reaction a more reactive metal displaces the aqueous solution of other metal. Therefore zinc being more reactive than hydrogen forms zinc chloride when reacted with HCl whereas copper doesn't.

Answer 2

hey mate here is your answer...

ti is because the reactivity series of metal tells us about that zinc is more reactive than hydrogen whereas copper is not.
as you know in displacement reaction..

hope it helps u..
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