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- Question 1 of 50
1. Question
Detergents used for cleaning clothes and utensils contain:
- Question 2 of 50
2. Question
Radioactive disintegration of uranium ultimately results in formation of:
- Question 3 of 50
3. Question
Which of the following is used in making smoke bombs?
- Question 4 of 50
4. Question
German silver is an alloy of:
- 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:
- Question 6 of 50
6. Question
Which of the following is a supercooled liquid?
- Question 7 of 50
7. Question
Which of the following is used to remove rust stains on cloth?
- Question 8 of 50
8. Question
Curd is sour due to presence of:
- Question 9 of 50
9. Question
Tear gas is:
- Question 10 of 50
10. Question
Which of the following compounds is commonly used as an antiseptic in mouthwashes and toothpastes?
Hint
Hydrogen peroxide is an antiseptic frequently used to clean minor cuts or disinfect surfaces. Gargling with hydrogen peroxide may help treat minor mouth irritations, such as cuts or canker sores because it is an antiseptic. In fact, many types of toothpaste and mouthwash in stores already contain this compound.
- Question 11 of 50
11. Question
Which one of the following is used to restore the colour of old oil paintings?
Hint
Hydrogen peroxide is a chemical compound with the formula H2O2. It is used as an oxidizer, bleaching agent, and antiseptic.
- Question 12 of 50
12. Question
Milk is a natural:
- Question 13 of 50
13. Question
A polymeric substance used to make parachute is:
- Question 14 of 50
14. Question
Drinking soda is:
Hint
Soda water is a carbonated drink where CO2 is dissolved in water to from carbonic acid hence it is acidic in nature.
- Question 15 of 50
15. Question
The cathode of a lead storage battery is made up of:
Hint
In a lead-acid battery, the cathode is made of lead dioxide, and the anode is made of metallic lead. The two electrodes are separated by an electrolyte of sulfuric acid.
- Question 16 of 50
16. Question
Which one of the following is radioactive?
- Question 17 of 50
17. Question
The acid used in lead storage cells is:
Hint
In the lead-acid storage battery, lead dioxide, lead metal, and sulfuric acid react to form lead sulfate and water; the separate processes are the oxidation of lead to lead sulfate at one electrode and the reduction of lead dioxide to lead sulfate at the other while electric charge is transported through the electrolyte by the migration of hydrogen ions.
- Question 18 of 50
18. Question
Alum stops bleeding in minor cuts because of:
- Question 19 of 50
19. Question
Tincture iodine is a solution of iodine in:
Hint
Tincture of iodine or weak iodine solution is an antiseptic. It is usually 2 to 7% elemental iodine, along with potassium iodide or sodium iodide, dissolved in a mixture of ethanol (Ethyl Alcohol) and water. Tincture solutions are characterized by the presence of alcohol.
- Question 20 of 50
20. Question
‘Plaster of Paris’ is made by partial dehydration of:
- Question 21 of 50
21. Question
Water can lie separated from alcohol water mixture by:
- Question 22 of 50
22. Question
Petroleum is a mixture of:
- Question 23 of 50
23. Question
The gas used for filling weather balloons is:
- Question 24 of 50
24. Question
Hydrogen is not found in atmosphere because:
Hint
The reason there is not much hydrogen in the atmosphere is because it is lighter than air, and so can easily escape the Earth’s gravity.
- Question 25 of 50
25. Question
Who discovered the atom bomb?
- Question 26 of 50
26. Question
What is the most commonly used substance in fluorescent tubes?
- Question 27 of 50
27. Question
What is “milk of magnesia” chemically?
- Question 28 of 50
28. Question
Soap is prepared by boiling caustic soda with:
- Question 29 of 50
29. Question
Which one of the following metals is used to galvanise iron?
- Question 30 of 50
30. Question
Bronze is an alloy of:
- Question 31 of 50
31. Question
The natural source of hydrocarbon is:
- Question 32 of 50
32. Question
Which of the following is chiefly present in LPG (Liquefied Petroleum Gas)?
- Question 33 of 50
33. Question
An element which does not react with oxygen is:
- Question 34 of 50
34. Question
The chemical used for destroying Fungi in water tanks is:
- Question 35 of 50
35. Question
Which among the following metals provides amphoteric oxide?
- Question 36 of 50
36. Question
Which among the following stage is suitable indicator when solution of sodium carbonate is mixed with sulphuric acid?
- Question 37 of 50
37. Question
Which among the following is pure matter?
- Question 38 of 50
38. Question
Bauxite is an alloy of which of the following metals?
- Question 39 of 50
39. Question
Nucleus of an atom consists of:
- Question 40 of 50
40. Question
Galvanised iron is made by coating iron with:
- Question 41 of 50
41. Question
The advantage of detergents over soaps is:
- Question 42 of 50
42. Question
The fundamental particles present in the nucleus of an atom are:
- Question 43 of 50
43. Question
Bleaching action of moist sulphur dioxide is because of its:
Hint
The bleaching of Sulphur dioxide (SO2) is mainly due to its reduction property and its temporary reaction as soon as it gains the required oxygen helps to regenerate its initial property.
- Question 44 of 50
44. Question
The long range potential of nuclear energy in India depends on its reserves of:
- Question 45 of 50
45. Question
Which of the following gases will effuse out of football bladder most quickly?
- Question 46 of 50
46. Question
Which of the following alkali metals has highest specific heat?
- Question 47 of 50
47. Question
In which of the following substances all carbon atoms are quaternary in nature?
- Question 48 of 50
48. Question
Which of the following is natural dye?
- Question 49 of 50
49. Question
Global warming is mainly due to accumulation of:
- Question 50 of 50
50. Question
Which is abundant in Gobar gas?