Statement (A): In all compounds, the oxidation number of oxygen is −2 .
Statement (B): Carbon exhibits +4 and −4 oxidation numbers only.
Statement (C): In all compounds, the oxidation number of fluorine is −1

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All the statements are incorrect

A, B are correct and C is incorrect

A, B are incorrect but C is correcrt

All the statements are correct

answer is D.

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Detailed Solution

Statement I, II are incorrect because oxygen generally exhibits an oxidation state of

- 2

only while the other members of the oxidation states of group show oxidation state of

+ 2

+ 4

and

+ 6

because it is highly electro-negative.

Carbon exhibits oxidation states from $- 4 to + 4$ and O inorganic compounds.

Fluorine exhibits only $- 1$ oxidation state in all compounds where as other halogens exhibit positive oxidation state.

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