O-LevelChemistryBonding & Structure5070/11 · Oct/Nov 2022 · Q91 Mark

Silicon dioxide has a giant structure. Each silicon atom is joined to four oxygen atoms by covalent bonds. Part of the structure is shown. Which property would silicon dioxide be expected to have?

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Agood conductor of electricity

Bhigh melting point

Creacts with hydrochloric acid

Dsoluble in water

✓ Correct answer

B: high melting point

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Topic: Bonding & Structure, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2022 Paper 1 Variant 1, question 9.

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