Q. Which of the following ions can be replaced by $H^{+}$ inos when $H_{2}$ gas is bubbled through the solutions containing these ions?
A) ${Li}^{+}$
B) ${Ba}^{2 +}$
C) ${Cu}^{2 +}$
D) ${Be}^{2 +}$
Explanation
(c)
The ions which lies below $H^{+}$ in electrochemical series, displace $H^{+}$ from solution.
∵ ${Cu}^{2 +}$ lies below $H^{+}$ in electrochemical series.
∴ ${Cu}^{2 +}$ ions displace $H^{+}$ when $H_{2}$ gas is bubbled in solution containing these ions.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.