Which of the following is a network solid?
Which of the following is a network solid?
Show Hint
Individual molecules do not form network solids. Network solids are made up of covalently-bonded atoms.
SO2 (solid)
I2
- Diamond
H2O (ice)
The Correct Option is C
Solution and Explanation
Diamond is a network solid. The carbon atoms in diamond are held together by strong covalent bonds, hence it is called as a network solid or covalent network solid.
A network solid is a compound in which all the atoms are bonded by strong covalent bonds forming a continuous network of bonds throughout the solid. Network solids do not contain molecules, they only have covalently bonded atoms. The other options are not correct because:
- SO2 is a molecule not a network solid even though it has covalent bonding.
- I2 is a molecule, so it is also not a network solid.
- H2O (ice) is a ionic solid and a molecule not a network solid.
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Concepts Used:
Solid State
Solids are substances that are featured by a definite shape, volume, and high density. In the solid-state, the composed particles are arranged in several manners. Solid-state, in simple terms, means "no moving parts." Thus solid-state electronic devices are the ones inclusive of solid components that don’t change their position. Solid is a state of matter where the composed particles are arranged close to each other. The composed particles can be either atoms, molecules, or ions.
Types of Solids:
Based on the nature of the order that is present in the arrangement of their constituent particles solids can be divided into two types;
- Amorphous solids behave the same as super cool liquids due to the arrangement of constituent particles in short-range order. They are isotropic and have a broad melting point (range is about greater than 5°C).
- Crystalline solids have a fixed shape and the constituent particles are arranged in a long-range order.