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Question

Quartz is:


A

Covalent solid

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B

Molecular solid

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C

Ionic solid

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D

Metallic solid

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Solution

The correct option is

A

Covalent solid

Quarts or silicon dioxide also called silica is made up of a giant network of covalent bonds. Each silicon atom is covalently bonded with four other oxygen atoms. These atoms are in turn bonded to two other silicon atoms and thus form a covalent network of bonds. The compound is represented by the formula SiO2.

In quartz, lattice points made up of non-metal, are held by a covalent bond. Hence, quartz is a covalent crystal. Quartz has strong covalent bonds.


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