Time limit: 0
Finish Test
0 of 50 questions completed
Questions:
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
- 16
- 17
- 18
- 19
- 20
- 21
- 22
- 23
- 24
- 25
- 26
- 27
- 28
- 29
- 30
- 31
- 32
- 33
- 34
- 35
- 36
- 37
- 38
- 39
- 40
- 41
- 42
- 43
- 44
- 45
- 46
- 47
- 48
- 49
- 50
Information
- Science and Tech-Chemistry Important Questions
- Free Online Test with Answers
- Very useful for all Competitive Exams
You have already completed the quiz before. Hence you can not start it again.
Test is loading...
You must sign in or sign up to start the quiz.
You have to finish following quiz, to start this quiz:
Results
0 of 50 questions answered correctly
Time has elapsed
You have reached 0 of 0 points, (0)
Categories
- Not categorized 0%
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
- 16
- 17
- 18
- 19
- 20
- 21
- 22
- 23
- 24
- 25
- 26
- 27
- 28
- 29
- 30
- 31
- 32
- 33
- 34
- 35
- 36
- 37
- 38
- 39
- 40
- 41
- 42
- 43
- 44
- 45
- 46
- 47
- 48
- 49
- 50
- Answered
- Review
- Question 1 of 50
1. Question
Which gas is used as fire extinguisher?
- Question 2 of 50
2. Question
Which one of the following is extensively used for sterilizing water?
- Question 3 of 50
3. Question
Which mixture of gases is mainly stored as a liquid under pressure in LPG cylinder?
- Question 4 of 50
4. Question
The major constituent of air is
- Question 5 of 50
5. Question
Which of the following organisms is most likely to produce greenhouse gases such as nitrous oxide and methane?
- Question 6 of 50
6. Question
Rusting of iron takes place due to
- Question 7 of 50
7. Question
The highest grade and best equality coal is
- Question 8 of 50
8. Question
German silver used for making utensils is an alloy of
- Question 9 of 50
9. Question
The purity of gold is expressed in carats. The purest form of gold is
- Question 10 of 50
10. Question
Petroleum consists of a mixture of
- Question 11 of 50
11. Question
The lustre of the metals is because of
- Question 12 of 50
12. Question
One of the following is used to dissolve noble metals. That is
- Question 13 of 50
13. Question
An emulsion is a colloid of a
- Question 14 of 50
14. Question
Percentage of carbon in steel ranges from
- Question 15 of 50
15. Question
Which of the following is not present in German-silver?
- Question 16 of 50
16. Question
The major harmful gas emitted by automobile vehicles which causes air pollution is
- Question 17 of 50
17. Question
Which one of the following is a major green house gas?
- Question 18 of 50
18. Question
The chemical name of ‘Common salt’ is
- Question 19 of 50
19. Question
Denatured spirit is ethanol mixed with
- Question 20 of 50
20. Question
The metal, which is a constituent of vitamin B₁₂ is
- Question 21 of 50
21. Question
The most abundant inert gas in the atmosphere is
- Question 22 of 50
22. Question
Which metal is extracted from seawater?
- Question 23 of 50
23. Question
Percentage of lead in lead pencils is
- Question 24 of 50
24. Question
Helium has is used in gas balloons instead of hydrogen gas because it is
- Question 25 of 50
25. Question
The gas used in the artificial ripening of fruits is
- Question 26 of 50
26. Question
Ruby and sapphire are oxides of
- Question 27 of 50
27. Question
The gas which turns into liquid at the lowest temperature among the following is
- Question 28 of 50
28. Question
Gunpowder consists of a mixture of
- Question 29 of 50
29. Question
Which of the following is the sweetest sugar?
- Question 30 of 50
30. Question
In nuclear reactors, graphite is used as a/an
- Question 31 of 50
31. Question
The process involved involved in making soap is
- Question 32 of 50
32. Question
Sea water can be purified by the process of
- Question 33 of 50
33. Question
The compound to which H₂ does not add is
- Question 34 of 50
34. Question
Ammonal is a mixture of
- Question 35 of 50
35. Question
Which gas does not form the part of atmosphere?
- Question 36 of 50
36. Question
The fuel used in an atomic reactor is
- Question 37 of 50
37. Question
The major constituent of gobar gas is
- Question 38 of 50
38. Question
The isotope of Uranium used in atomic reactors is
- Question 39 of 50
39. Question
Which one of the following is not a radio-active element?
- Question 40 of 50
40. Question
The greenhouse effect is caused by the higher level of which gas in the atmosphere?
- Question 41 of 50
41. Question
Candle is a mixture of
- Question 42 of 50
42. Question
Ethanol containing 5% water is known as
- Question 43 of 50
43. Question
Brass is an alloy of copper and
- Question 44 of 50
44. Question
The density of a gas is maximum at
- Question 45 of 50
45. Question
The important ore of aluminium is
- Question 46 of 50
46. Question
Aqua regia is a 1 : 3 mixture, by volume, of
- Question 47 of 50
47. Question
What is the maximum Water Vapour content in the atmosphere?
- Question 48 of 50
48. Question
The amount of chlorine available in water after disinfection is called as
- Question 49 of 50
49. Question
What are the major pollutants of cigarette smoke?
- Question 50 of 50
50. Question
Zinc sulphide is commonly used as