Interpretation:
A graph is to be drawn showing the change in reduction potential of alkali metals down the group.
Concept introduction:
The reducing ability of an element depends on how easily it is able to donate electrons.
Answer to Problem 14SSC
Explanation of Solution
Alkali metals need to lose one electron to reach stable electronic configuration. As one move down the group, the atomic size increases and losing one electrons becomes easier due to lowering of the effective positive charge from the nucleus. Hence the reducing ability increases down the group resulting in the given graph.
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