Which of the following statements are correct? (I) structure is not allowed because octet around...

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Which of the following statements are correct?
(I) structure is not allowed because octet around \( \mathrm{O} \) can not be expanded.
(II) \( \mathrm{H}_{2} \mathrm{O}_{2} \) is ionic compound
(III) In \( \mathrm{B}_{2} \) molecule, the highest occupied molecular orbital is \( \sigma \) molecular orbital.
(IV) The \( \mathrm{lp}-\mathrm{bp} \) repulsion is stronger than \( \mathrm{bp}-\mathrm{bp} \) repulsion.
(1) (I) and (III)
(2) (II) and (III)
(3) (I) and (IV)
(4) (III) and (IV)
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