Which is the correct order of increasing oxidizing ability?
Pb²+ < Ni²+ < Cr³+ < Al³+
Al³+ < Cr³+ < Ni²+ < Pb²+
Cr³+ < Al³+ < Ni²+ < Pb²+
Ni²+ < Pb²+ < Al³+ < Cr³+
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Explanation:
Metals are good reducing agents, while non-metals are good oxidizing agents. Further among halogens, metallic character increases as we move from top to bottom in a group, i.e., the oxidizing nature is I2<Br2<Cl2<F2.
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