Question

Lithium is generally used as an electrode in high energy density batteries. This is because:

• A. lithium is the lightest element
• B. lithium has quite high negative reduction potential
• C. lithium is quite reactive
• D. lithium does not corrode easily

Answer 1

The correct option is B lithium has quite high negative reduction potential

Lithium has quite high negative reduction potential. It is strong reducing agent. Hence when lithium electrode is coupled with any electrode, the cell thus constructed has positive EMF and the cell reaction will be spontaneous. Hence the cell will be able to generate power.

Hence, option B is correct.