Q. A silver cup is plated with silver by passing 965 C of electricity. The amount of Ag deposited is
A) 107.89 g
B) 9.89 g
C) 1.0002 g
D) 1.08 g
Explanation
(d)
$Ag^{+} + \ e^{-}\ \longrightarrow \ Ag$
∵ 96500 C are required to deposite Ag = 108 g
∴ 965 C are required to deposite Ag
$= \ \frac{108}{96500}\ \times \ 965\ = \ 1.08\ g$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.