Liquid crystal is discovered by __________________?
Correct answer: B. Fredrack Reinitzer
- A. William Crooks
- B. Fredrack Reinitzer
- C. J.J Thomson
- D. Bravis
Explanation
Friedrich Reinitzer discovered liquid crystals in 1888 while studying cholesteryl compounds that showed two melting transitions. Students may choose J. J. Thomson, option c, because he is a well-known scientist in chemistry, but Thomson is associated with the discovery of the electron, not liquid crystals.
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About Properties of Liquids
Liquid behavior depends on intermolecular forces, which produce surface tension, viscosity, capillary action and a definite volume without a fixed shape. The topic also covers vapor pressure, evaporation, boiling point and the effect of temperature and external pressure, while distinguishing evaporation at the surface from boiling throughout the liquid.
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