Question

Zinc liberates hydrogen gas when reacted with dilute hcl but cupper does not why

Answer 1

Explanation:

* Zinc reacts with hydrochloric acid (HCl) to liberate Hydrogen gas(H2) as it is more reactive than Hydrogen and hence, displace it.

* Copper is less reactive when compared to Hydrogen and hence cannot displace it.

* The same can be understood by looking at the activity series of metals.

Answer 2

it cannot displace hydrogen when reacting with dilute HCl.