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Among Group 16 elements, which one does NOT show -2 oxidation state?

Given below are certain cations. Using inorganic qualitative analysis, arrange them in increasing group number from 0 to $$\mathrm{VI}$$.

A. $$\mathrm{Al}^{3+}$$

B. $$\mathrm{Cu}^{2+}$$

C. $$\mathrm{Ba}^{2+}$$

D. $$\mathrm{Co}^{2+}$$

E. $$\mathrm{Mg}^{2+}$$

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Match the List - I with List - II

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