20 questions
Osmosis is a process in which solvent molecules move from a region of lower solute concentration to one of a higher solute concentration through a semi-permeable membrane. The given picture is diagrammatic representation of MOLECULES OF SOLUTE in water. What is most likely to be observed in the given set-up after sometime?
More water molecules will move from Region 1 to Region 2
More water molecules will move from Region 2 to Region 1
Equal number of water molecules will move either way between Regions 1 and 2
There will be no movement of water molecules between Regions 1 and 2
What is the difference between evaporation and boiling?
There is no difference- they are exactly the same
Evaporation unlike boiling , occurs at all temperatures
In evaporation unlike in boiling there is no state change
In boiling unlike in evaporation the liquid volume reduces
A
B
C
D
A
B
C
D
A
B
C
D
Three gases found in the Earth's atmosphere are :
Carbon-Dioxide
Oxygen
Nitrogen
What is their order of abundance from greatest to least?
Nitrogen , Oxygen , Carbon-Dioxide
Nitrogen, Carbon Dioxide , Oxygen
Oxygen, Nitrogen , Carbon -Dioxide
Carbon-Dioxide , Oxygen , Nitrogen
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
The image formed by a pinhole camera is inverted because:
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D