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Question 1 of 50
1. Question
Detergents used for cleaning clothes and utensils contain
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Question 2 of 50
2. Question
Radioactive disintegration of uranium ultimately results in formation of
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Question 3 of 50
3. Question
Which of the following is used in making smoke bombs?
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Question 4 of 50
4. Question
German silver is an alloy of
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Question 5 of 50
5. Question
A metal is exposed to the atmosphere for sometime. It becomes coated with green carbonate. The metal must be
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Question 6 of 50
6. Question
Which of the following is a supercooled liquid ?
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Question 7 of 50
7. Question
Which of the following is used to remove rust stains on cloth?
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Question 8 of 50
8. Question
Curd is sour due to presence of
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Question 9 of 50
9. Question
Tear gas is :
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Question 10 of 50
10. Question
Which of the following compounds is commonly used as an antiseptic in mouthwashes and toothpastes ?
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Question 11 of 50
11. Question
Which one of the following is used to restore the colour of old oil paintings ?
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Question 12 of 50
12. Question
Milk is a natural
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Question 13 of 50
13. Question
A polymeric substance used to make parachute is
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Question 14 of 50
14. Question
Drinking soda is
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Question 15 of 50
15. Question
The cathode of a lead storage battery is made up of
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Question 16 of 50
16. Question
Which one of the following is radioactive ?
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Question 17 of 50
17. Question
The acid used in lead storage cells is
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Question 18 of 50
18. Question
Alum stops bleeding in minor cuts because of
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Question 19 of 50
19. Question
Tincture iodine is a solution of iodine in
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Question 20 of 50
20. Question
‘Plaster of Paris’ is made by partial dehydration of
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Question 21 of 50
21. Question
Water can lie separated from alcohol water mixture by
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Question 22 of 50
22. Question
Petroleum is a mixture of
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Question 23 of 50
23. Question
The gas used for filling weather balloons is
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Question 24 of 50
24. Question
Hydrogen is not found in atmosphere because
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Question 25 of 50
25. Question
Who discovered the atom bomb?
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Question 26 of 50
26. Question
What is the most commonly used substance in fluorescent tubes?
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Question 27 of 50
27. Question
What is “milk of magnesia” chemically?
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Question 28 of 50
28. Question
Soap is prepared by boiling caustic soda with
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Question 29 of 50
29. Question
Which one of the following metals is used to galvanise iron ?
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Question 30 of 50
30. Question
Bronze is an alloy of
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Question 31 of 50
31. Question
The natural source of hydro-car-bon is
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Question 32 of 50
32. Question
Which of the following is chiefly present in LPG (Liquefied Petroleum Gas) ?
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Question 33 of 50
33. Question
An element which does not react with oxygen is
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Question 34 of 50
34. Question
The chemical used for destroying Fungi in water tanks is
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Question 35 of 50
35. Question
Which among the following metals provides amphoteric oxide?
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Question 36 of 50
36. Question
Which among the following stage is suitable indicator when solution of sodium carbonate is mixed with sulphuric acid ?
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Question 37 of 50
37. Question
Which among the following is pure matter ?
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Question 38 of 50
38. Question
Bauxite is an alloy of which of the following metals ?
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Question 39 of 50
39. Question
Nucleus of an atom consists of
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Question 40 of 50
40. Question
Galvanised iron is made by coating iron with
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Question 41 of 50
41. Question
The advantage of detergents over soaps is
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Question 42 of 50
42. Question
The fundamental particles present in the nucleus of an atom are
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Question 43 of 50
43. Question
Bleaching action of moist sulphur di-oxide is because of its
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Question 44 of 50
44. Question
The long range potential of nuclear energy in India depends on its reserves of
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Question 45 of 50
45. Question
Which of the following gases will effuse out of football bladder most quickly?
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Question 46 of 50
46. Question
Which of the following alkali metals has highest specific heat?
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Question 47 of 50
47. Question
In which of the following substances all carbon ale quaternary in nature ?
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Question 48 of 50
48. Question
Which of the following is natural dye ?
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Question 49 of 50
49. Question
Global warming is mainly due to accumulation of
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Question 50 of 50
50. Question
Which is abundant in Gobar gas?