Giant covalent structures — practice question

Which row gives the description of silicon(IV) oxide?

• Ahas a giant structure ✓, is an acidic oxide ✓, conducts electricity ✓
• Bhas a giant structure ✓, is an acidic oxide ✓, conducts electricity ✗
• Chas a giant structure ✓, is an acidic oxide ✗, conducts electricity ✗
• Dhas a giant structure ✗, is an acidic oxide ✓, conducts electricity ✓