Select the incorrect statement about ice :

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Statements (A) and (B) are correct because ice naturally forms a hexagonal lattice at standard atmospheric pressure but transforms into a cubic structure at extremely low temperatures.

Statement (C) is correct since heavy water (D₂O) ice is denser ( $\approx 1.105 g / c m^{3}$ ) than normal liquid water ( $\approx 1.00 g / c m^{3}$ ), causing it to sink.

Statement (D) is incorrect because each oxygen atom is tetrahedrally surrounded by four other oxygen atoms at a uniform O⋅⋅⋅O distance of approximately $276 p m$ . The value $95.7 p m$ represents the internal covalent O–H bond length within a single water molecule, not a separate distance to neighboring oxygen atoms in the tetrahedral network.

Chemistry - Hydrogen and Its compound Question with Solution | TestHub

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