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Question

Network solid among the following is :

A
Li2O
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B
SiO2
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C
H2O
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D
CO2
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E
NaCl
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Solution

The correct option is B SiO2
A network solid or covalent network solid is a chemical compound (or element) in which the atoms are bonded by covalent bonds in a continuous network extending throughout the material. In a network solid there are no individual molecules, and the entire crystal may be considered a macromolecule. SiO2 is a network solid. Li2O and NaCl are ionic crystals. H2O is a covalent liquid and CO2 is a covalent gas.

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