General
✓✗Dry ice is used in/as
- Keeping ice cream
- Deep freeze
- A coolant
- All of these
General
✓✗Full form of CNG is
- Completely Natural Gas
- Compressed Natural Gas
- Consumer Needed Gas
- Carbon Nitrogen Gas
General
✓✗Now a days scientists claim about existence of how many states of matters?
- 3
- 4
- 5
- 6
General
✓✗Correct definition of “Latent heat of fusion” is -
- It is the quantity of heat in Celsius required to convert 1 gm of solid into liquid without any change in temperature
- It is the quantity of heat in Joules required to convert 1 Kg. of solid into liquid, without any change in temperature
- It is the quantity of heat in Joules required to convert 1 gm of solid into liquid without any change in temperature
- None of these is correct
General
✓✗25°C =______ K
- 298
- 248
- 25
- None of these
General
✓✗Brownian motion was observed for the first time by
- James Brown
- Brown Swiss
- Robert Brown
- Michael Brown
General
✓✗The random movement of particles caused by much smaller particles is known as
- Diffusion
- Tyndall effect
- Brownian motion
- Osmosis
General
✓✗Identify the processes in following conversion -
- A - sublimation, B - melting
- A - vaporization, B - sublimation
- A - sublimation, B - sublimation
- A - vaporization, B - Condensation
General
✓✗Which of the following is considered as the fourth state of matter?
- Gas
- Plasma
- Liquid
- Bose-Einstein condensate
General
✓✗Latent heat of vaporization of water is
-
Joules/Kg
-
Joules/Kg
-
Joules/Kg
-
Joules/Kg