Question

Which one among the following metals is the weakest reducing agent?

• A. $Rb$
• B. $Na$
• C. $Li$
• D. $K$

Answer 1

Answer: (B)

$Na$

Answer 2

Sodium has the lowest oxidation potential in alkali metals. Hence it is the weakest reducing agent among alkali metals. Low ionization energy should be present for the element to act as a reducing agent. Alkali metals have low ionization energy thus making them a strong reducing agent.

So, the correct option is (B): Na.

Read more from the chapter:Classification of Elements and Periodicity in Properties