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Which of the following is the strongest ...

Which of the following is the strongest reducing agent in aqueous solution ?

A

Na

B

Li

C

K

D

Cs.

Text Solution

Verified by Experts

The correct Answer is:
B
Alkali metals are highly electropositive in nature. Therefore, they readily lose electrons in aqueous solutions, and act as strong reducing agents.
However, among all the alkali metals, Li has a very high hydration energy. Therefore, it gives up an electron most readily in water, and acts as the strongest reducing agent.
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