Question

Which one of the following metals will liberate hydrogen from dilute Sulphuric acid, dilute

Hydrochloric acid and dilute Nitric acid ?​

Answer 1

Answer:

Zinc liberates hydrogen gas when reacted with dilute hydrochloric acid, whereas copper. Zinc liberates hydrogen gas when reacted with dilute hydrochloric acid, whereas copper does not.

Answer 2

Copper metal will liberate hydrogen from diluting Sulphuric acid, hydrochloric acid, and nitric acid.

• Copper comes below the hydrogen in the electrochemical series. So, it cannot be displaced $H_{2}$ from diluting.
• As, we know that more reactive element can displace a less reactive element from its salt solution.

Therefore, copper will liberate hydrogen from dilute.