Q. Reduction potentials of A, B, C, and D are 0.8 V, 0.79 V, 0.34 V and -2.37 V respectively. Which element displaces all the other three elements?

A) B
B) A
C) D
D) C
Explanation

(c)
Among given elements, $D\$has the minimum reduction potential (- 2.37 V) hence, it can displace all other from their salts.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.