Options:
- A. No definite geometry
- B. No definite heat of fusion
- C. No sharp melting points
- D. All of the above
View Answer
C. No sharp melting points
Chemistry
The boiling point increases down the zero group element due to_________________?
Options:
- A. Ion dipole forces
- B. London forces
- C. Hydrogen bonding
- D. Dipole dipole forces
View Answer
B. London forces
Reaction in which heat evolves is called ____________________?
Options:
- A. endothermic
- B. spontaneous
- C. non-spontaneous
- D. exothermic
View Answer
D. exothermic
In order to mention the boiling point of water at 110
Options:
- A. Between 760 torr and 1200 torr
- B. Between 200 torr and 760 torr
- C. 765 torr
- D. any value of pressure
View Answer
A. Between 760 torr and 1200 torr
Pumping of water uphill is_______________?
Options:
- A. spontaneous process
- B. non-spontaneous process
- C. irreversible process
- D. reversible process
View Answer
B. non-spontaneous process
Vapour pressure of water at 100
Options:
- A. 55 mm Hg
- B. 760 mm Hg
- C. 355 mm Hg
- D. 1489 mm Hg
View Answer
B. 760 mm Hg
Which one of the following is a state function ________________?
Options:
- A. pressure
- B. temperature
- C. enthalpy
- D. all of the above
View Answer
D. all of the above
Liquid crystal is discovered by __________________?
Options:
- A. William Crooks
- B. Fredrack Reinitzer
- C. J.J Thomson
- D. Bravis
View Answer
B. Fredrack Reinitzer
Enthalpy of a reaction can be measured by ____________________?
Options:
- A. glass calorimeter
- B. manometer
- C. Barometer
- D. thermometer
View Answer
A. glass calorimeter
Hydrogen bonding is involved in____________________?
Options:
- A. Solubility
- B. Cleansing action of detergents
- C. Biological molecules
- D. All
View Answer
D. All