$C O_{2}$ is a gas whereas $S i O_{2}$ , is a solid. Explain with reason.

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Solution

At room temperature, $C O_{2}$ has only weak dispersion intermolecular forces holding the molecules together. So, $C O_{2}$ is a gas at room temperature. Whereas in $S i O_{2}$ , each Si-atom is linked with $O$ -atom with single bond thus forming a network solid with high melting point. So, $S i O_{2}$ is a solid.

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