Chemistry · States of Matter - Gases, Liquids and Solids
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The properties of liquid crystals are intermediate between crystals and:
- A
Anisotropic liquids
- B
Nematic liquids
- C
Isotropic liquids
- D
Liquids
Correct. Isotropic liquids have no long-range order and uniform properties in all directions. Liquid crystals have more order than isotropic liquids but less than solid crystals, making them intermediate between crystals and isotropic liquids.
Anisotropic liquids are liquids that exhibit different physical properties in different directions in space. This is because of the random arrangement of particles. Hence, this option is the incorrect one.
The nematic liquid is a type of anisotropic liquid that lacks positional order; its atoms are randomly arranged. They have elongated molecules, but not all liquid crystals are nematic. Hence, this option is incorrect.
Correct. Isotropic liquids have no long-range order and uniform properties in all directions. Liquid crystals have more order than isotropic liquids but less than solid crystals, making them intermediate between crystals and isotropic liquids.
Incorrect. This is too general. The proper comparison is to isotropic liquids, which lack directional order, unlike liquid crystals.
Tagged under Chemistry · States of Matter - Gases, Liquids and Solids · 2021