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Question 1 of 30
1. Question
The mass per unit volume of a substance is:
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Question 2 of 30
2. Question
The melting point of ice is:
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Question 3 of 30
3. Question
What is dry ice?
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Question 4 of 30
4. Question
Which of the following state is responsible for the glow in the sun and stars?
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Question 5 of 30
5. Question
Which of the following phenomenon takes place when we add a drop of Dettol into the water?
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Question 6 of 30
6. Question
During summer, water kept in an earthen pot becomes cool because of the phenomenon of:
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Question 7 of 30
7. Question
Which condition out of the following will increase the evaporation of water?
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Question 8 of 30
8. Question
What is that process known as in which a solid is converted directly into the gaseous state without coming to a liquid state?
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Question 9 of 30
9. Question
In which of the following conditions, the distance between the molecules of hydrogen gas would increase?
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Question 10 of 30
10. Question
When a gas jar full of air is placed upside down on a gas jar full of bromine vapours, the red-brown vapours of bromine from the lower jar go upward into the jar containing air. In this experiment:
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Question 11 of 30
11. Question
A form of matter has no fixed shape but it has a fixed volume. An example of this form of matter is
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Question 12 of 30
12. Question
Which one of the following statements is not true?
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Question 13 of 30
13. Question
The correct procedure of heating iron-sulphur mixture to prepare iron sulphide is: :
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Question 14 of 30
14. Question
When water at 0°C freezes to form ice at the same temperature of 0°C, then it:
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Question 15 of 30
15. Question
When heat is constantly supplied by a burner to boiling water, then the temperature of water during vaporisation :
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Question 16 of 30
16. Question
Which one of the following set of phenomena would increase on raising the temperature?
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Question 17 of 30
17. Question
On converting 308 K, 329 K and 391 K to Celsius scale, the correct sequence of temperatures will be:
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Question 18 of 30
18. Question
Four students took separately the mixture of sand, common salt and ammonium chloride in beakers, added water, stirred the mixture well and then filtered. They reported their observations as shown below
Student As residue In the filtrate I Ammonium chloride Sand Common salt II Common salt, Sand Ammonium chloride III Sand, Ammonium chloride Common Salt IV Sand Ammonium chloride, Common salt Who reported the observations in the correct order of the components as residue and in the filtrate?
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Question 19 of 30
19. Question
Which of the following phenomena always results in the cooling effect?
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Question 20 of 30
20. Question
Which of the following cannot be considered a form of matter?
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Question 21 of 30
21. Question
Which of the following causes the temperature of a substance to remain constant while it is undergoing a change in its state?
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Question 22 of 30
22. Question
Which of the following statement is correct?
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Question 23 of 30
23. Question
Which of the following statement is not true regarding the characteristic of matter?
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Question 24 of 30
24. Question
How many states of matter exist normally in nature?
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Question 25 of 30
25. Question
What is that temperature called at which solid melts to become a liquid at the atmospheric pressure?
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Question 26 of 30
26. Question
What is the state of matter which has maximum compressibility?
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Question 27 of 30
27. Question
Fill in the blank
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Early Indian philosophers classied matter into basic forms or elements.
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Question 28 of 30
28. Question
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The common unit of measuring volume is
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Question 29 of 30
29. Question
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With increase in temperature the kinetic energy of the particles
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Question 30 of 30
30. Question
Fill in the blank
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The rate of diusion of liquids is than that of solids.
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