Q. Most powerful reducing agent is

A) Li
B) Na
C) Ca
D) Mg
Explanation

(a)
Alkali metals are strongest reducing agent among elements of Periodic Table. The reducing character decreases down the group.
$\therefore$ Li is strongest reducing agent among Li, Na, Mg and Ca.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

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