Multiple choice

Which of the following elements will not liberate hydrogen gas on its treatment with dilute HCI?

  1. Zn

  2. Fe

  3. Cu

  4. Al

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Copper will not liberate hydrogen gas on its treatment with dilute HCl because copper is less reactive than hydrogen and thus, it cannot replace hydrogen from hydrochloric acid.