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- 1. Multiple Choice
During summer days, water kept in an earthen pot becomes cool because of the phenomenon of
diffusion
transpiration
osmosis
evaporation
- 2. Multiple Choice
On converting 308K, 329K and 391K to Celsius scale, the correct sequence of temperature will be
330C, 560C, 1180C
350C, 560C, 1190C
350C, 560C, 1180C
560C, 1190C, 350C
- 3. Multiple Choice
When heat is constantly supplied by a burner to boiling water, then the temperature of the water during vaporization
rises very slowly
rises rapidly until the steam is produced
first rises and then becomes constant
does not rise at all
- 4. Multiple Choice
When heat is constantly supplied by a gas burner with small flame to melt the ice, then the temperature of the ice during melting
increases very slowly
does not increase at all
first remains constant then increases
increases to form liquid water
- 5. Multiple Choice
Which of the following energy is absorbed during change of state of substance?
Specific heat
Latent heat
Heat capacity
Heat of solution
- 6. Multiple Choice
Which of the following factors are responsible for the change in state of solid carbon dioxide when kept exposed to air? (More than one option is correct)
increase in pressure
increase in temperature
decrease in pressure
decrease in temperature
- 7. Multiple Choice
The evaporation of water increases under the following conditions
increase in temperature, decrease in surface area
increase in surface area, decrease in temperature
increase in surface area, increase in temperature
increase in surface area, increase in temperature, addition of common salt
- 8. Multiple Choice
During respiration, glucose and oxygen enter our body cells and waste products leave the body cells by the process of
effusion
osmosis
diffusion
plasmolysis
- 9. Multiple Choice
Which of the following is not an element?
Graphite
Germanium
Silica
Silicon
- 10. Multiple Choice
Which of the following are compounds? (More than one option is true)
CO
NO
No
Co
- 11. Open Ended
Name three mixtures found in nature
- 12. Open Ended
Name a metal which is soft and a non metal which is hard
- 13. Fill in the Blank
An element is made up of only one kind of ___________.
- 14. Multiple Choice
The elements which are sonorous are called
metal
non-metal
alloy
None of the above
- 15. Multiple Choice
Chlorine gas is an example of
Compound
Mixture
Element
None of the above
- 16. Multiple Choice
Which of the following is true for wood?
Wood is an element
Wood is a compound
Wood is a homogenous mixture
Wood is a heterogenous mixture
- 17. Multiple Choice
Is milk a pure substance?
Yes
No
May be
- 18. Multiple Choice
What type of matter is this?
Solid
Liquid
Gas
- 19. Multiple Choice
What type of matter is this?
Solid
Liquid
Gas
- 20. Multiple Choice
What type of matter is this?
Solid
Liquid
Gas
- 21. Multiple Choice
What type of matter is this?
Solid
Liquid
Gas
- 22. Multiple Choice
Which one is solid's particle?
- 23. Multiple Choice
Which one is Gas particles?
- 24. Multiple Choice
Which one is liquid particles?
- 25. Multiple Choice
Oxygen is liquid?
True
False
- 26. Multiple Choice
Humans are Solid ?
True
False
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