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Carbon dioxide is a gas but silica is a solid becauseA. Carbondioxide is composed of discrete covalent `CO_(2)` molecules where as silica has continuous tetrahedral structureB. `CO_(2)` molecules are lighter than `SiO_(2)` moleculesC. `CO_(2)` is more acidic than `SiO_(2)`D. Melting point of silica is very high

Answer» Correct Answer - A


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