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Q.

Among Group 16 elements, which one does not show –2 oxidation state?

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a

S

b

Po

c

O

d

Te

answer is B.

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Detailed Solution

In the group 16, most metallic element (i.e. most electropositive element) does not show - 2 oxidation state as its electronegativity is very low.
Hence, Po (polonium) (Z = 84) does not show -2 oxidation state because on going down the group, electropositive nature increases.

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Among Group 16 elements, which one does not show –2 oxidation state?