In solid ice oxygen atom is surrounded:

tetrahedrally by 4 hydrogen atoms

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Octahedrally by 2 oxygen and 4 hydrogens atoms

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tetrahedrally 2 hydrogen and 2 oxygens atoms

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Octahedrally by 6 hydrogens atoms

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Solution

The correct option is A tetrahedrally by 4 hydrogen atoms
In the solid-state (ice), intermolecular interactions lead to a highly ordered but loose structure in which each oxygen atom is surrounded by four hydrogen atoms.
Two of these hydrogen atoms are covalently bonded to the oxygen atom, and the two others (at longer distances) are hydrogen bonded to the oxygen atom’s unshared electron pairs.
Therefore, the oxygen atom is surrounded tetrahedrally by 4 hydrogen atoms.

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