Question

Rank these species by their ability to act as an oxidizing agent. Sn2+ Fe2+ Ca2+ Au3+

Answer 1

In the standard reduction potential table if u consider the left side species in that series of species on the left side of the table. From top to bottom the power of oxidizing agent decrease from top to bottom. So we need to compare the values

The one on the left side and at the top will be the best oxidizing agent and the one at the last on left side will be least oxidizing agent

Au3+, highest oxidizing agent power

Then Cu2+ then Sn2+ and then Ca2+

So decreasing order is Au3+>Cu2+>Sn2+>Ca2+

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Answer 2

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