Liquid crystal was discovered by:
Correct answer: A. Friedrich Reinitzer
- A. Friedrich Reinitzer
- B. William Crooks
- C. Bravis
- D. J. J. Thomson
Explanation
Liquid crystal was discovered by Friedrich Reinitzer, an Austrian botanist and chemist, in 1888. He was studying the properties of cholesteryl benzoate, a compound extracted from carrots, when he noticed that it had two melting points. The first melting point was at 145°C, and the second melting point was at 178°C. This was unusual, as most substances only have one melting point. Reinitzer also noticed that the cloudy liquid between the two melting points had some of the properties of both a liquid and a solid. He called this new substance a "liquid crystal."
Last updated
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.
Practise Liquids
350 free Liquids MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemistry questions like this
Chemistry is on 12 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
10ml of alcohol dissolve in 90ml of water unit of concentration used is________________?
A falling drop of liquid is spherical because:
A liquid crystalline state exists between two temperatures i.e melting temperature and _ temperature.
A liquid crystalline state exists between two temperatures (the melting temperature and the _ temperature).
A liquid takes the shape of its container but has a fixed volume because its molecules