Question

which of the following is strongest reducing agent un its aq solution​

Answer 1

Explanation:

Among metals, ____  is the strongest reducing agents in aqueous solutions.

oxidation of Li in aq. solution is easiest (thermodynamically) and hence, Li is the strongest reducing agent on the basis of energy considerations) due to greater HYDRATION ENERGY. Interestingly, sodium, is the weakest reducing agent thermodynamically, among alkali metals, in aq.

Answer 2

The correct question is -

which of the following is strongest reducing agent in aqueous medium?

a. Mg b. Na c. Li d. Ca

Among the given options the strongest reducing agent is Li.

• The element Li refers to Lithium.Lithium is small in size and has a strong hydration capacity.
• The strength of the hydration in excess makes up for the loss of ionisation. This results in Lithium having a high oxidation potential.
• The following reaction takes place Li(s) →→ Li  +  (aq) + e−