Q. $H_{2}$ cannot be displaced by
A) ${Li}^{+}$
B) ${Sr}^{2 +}$
C) ${Al}^{3 +}$
D) ${Ag}^{+}$
Explanation
(d)
The elements which are below $H_{2}$ in electrochemical series, cannot displace$H_{2}$ .
∵Out of $\ {Li}^{+},\ {Sr}^{2 +},\ {Al}^{3 +}\ and\ {Ag}^{+},\ {Ag}^{+}$ is below $\ H_{2}$ in electrochemical series,
so ${Ag}^{+}$ cannot displace$H_{2}$.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.