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- Answered
- Review
- Question 1 of 50
1. Question
The purest form of water is:
- Question 2 of 50
2. Question
The main constituent of biogas is:
- Question 3 of 50
3. Question
Aspirin is chemically known as:
- Question 4 of 50
4. Question
The most abundant element in the human body is:
- Question 5 of 50
5. Question
Which of the following is not a greenhouse gas?
- Question 6 of 50
6. Question
Wax used for making candle is chemically a mixture of:
- Question 7 of 50
7. Question
Litmus is obtained from:
- Question 8 of 50
8. Question
Vinegar made by fermentation from cane sugar contains:
- Question 9 of 50
9. Question
Photooxidation process is initiated by:
- Question 10 of 50
10. Question
Which one of the following is used in large quantities in Cement Industry?
- Question 11 of 50
11. Question
Ultraviolet radiation striking the earth is due to the depletion of:
- Question 12 of 50
12. Question
Major gaseous pollutant of the thermal power station is:
- Question 13 of 50
13. Question
The process of removing calcium and magnesium from hard water is known as:
- Question 14 of 50
14. Question
The tip of the match-stick contains:
- Question 15 of 50
15. Question
Match the following:
A. Formic acid 1. Lemon B. Citric acid 2. Tamarind C. Tartaric acid 3. Ants - Question 16 of 50
16. Question
Commercially, sodium bicarbonate is known as:
- Question 17 of 50
17. Question
An emulsifier is an agent which:
- Question 18 of 50
18. Question
Mortar is a mixture of water, sand and:
- Question 19 of 50
19. Question
Carbon monoxide is an inflammable gas. Which one of the following is also inflammable?
- Question 20 of 50
20. Question
Which one of the following metals does not react with water to produce Hydrogen?
- Question 21 of 50
21. Question
Ozone consists of:
- Question 22 of 50
22. Question
Which of the following liquids has the least density?
- Question 23 of 50
23. Question
One of the constituents of tear gas is:
- Question 24 of 50
24. Question
An atomic clock is based on transitions in:
- Question 25 of 50
25. Question
What is the chemical name of vinegar?
- Question 26 of 50
26. Question
Which of the following is not a property of heavy water?
- Question 27 of 50
27. Question
Silver halides are used in photographic plates because they are:
- Question 28 of 50
28. Question
Tetra-ethyl lead (TEL) is:
- Question 29 of 50
29. Question
Curie point is the temperature at which:
- Question 30 of 50
30. Question
The isotope used for the production of atomic energy is:
- Question 31 of 50
31. Question
Which of the following is not a nucleon?
- Question 32 of 50
32. Question
The material used in the manufacture of lead pencil is:
- Question 33 of 50
33. Question
German silver, an alloy, does not contain the metal:
- Question 34 of 50
34. Question
Which substance is added to make natural rubber more strong and bouncy?
- Question 35 of 50
35. Question
Detergents are:
- Question 36 of 50
36. Question
The noble gas used in radiotherapy is:
- Question 37 of 50
37. Question
Steel contains:
- Question 38 of 50
38. Question
The chemical(s) most commonly used for cloud seeding or ‘artificial rainmaking’ is/are:
- Question 39 of 50
39. Question
White phosphorus is always kept under:
- Question 40 of 50
40. Question
Sea water can be purified by the process of:
- Question 41 of 50
41. Question
Galena is a mineral of:
- Question 42 of 50
42. Question
Magnalium is an alloy of:
- Question 43 of 50
43. Question
Galvanization of Iron is carried out using:
- Question 44 of 50
44. Question
Cooking gas is a mixture of:
- Question 45 of 50
45. Question
Dry powder fire extinguishers contain:
- Question 46 of 50
46. Question
Which type of glass is used for making glass reinforced plastic?
- Question 47 of 50
47. Question
Two elements which are used to absorb neutrons to control the chain reaction during nuclear fission are:
- Question 48 of 50
48. Question
The most commonly used chemicals in artificial rainmaking or cloud seeding are:
- Question 49 of 50
49. Question
Which of the following can be used to absorb neutrons to control the chain reaction during nuclear fission?
- Question 50 of 50
50. Question
Hydrogen bomb is based on the principle of: