State a reason for each of the following statements:
(i) Fluorine never exhibits any positive oxidation state.
(ii) Helium does not form any real chemical compound.

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1 Answers

(i) This is because fluorine is most electronegative element and does not have d-orbitals in its valence shell. 

(ii) Due to vary high ionisation enthalpy helium does not form any real chemical compound

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