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Chemistry Quiz 3

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  1. Answered
  2. Review
  1. Question 1 of 50
    1. Question

    Which gas is used as fire extinguisher?

  2. Question 2 of 50
    2. Question

    Which one of the following is extensively used for sterilizing water?

  3. Question 3 of 50
    3. Question

    Which mixture of gases is mainly stored as a liquid under pressure in LPG cylinder?

  4. Question 4 of 50
    4. Question

    The major constituent of air is

  5. Question 5 of 50
    5. Question

    Which of the following organisms is most likely to produce greenhouse gases such as nitrous oxide and methane?

  6. Question 6 of 50
    6. Question

    Rusting of iron takes place due to

  7. Question 7 of 50
    7. Question

    The highest grade and best equality coal is

  8. Question 8 of 50
    8. Question

    German silver used for making utensils is an alloy of

  9. Question 9 of 50
    9. Question

    The purity of gold is expressed in carats. The purest form of gold is

  10. Question 10 of 50
    10. Question

    Petroleum consists of a mixture of

  11. Question 11 of 50
    11. Question

    The lustre of the metals is because of

  12. Question 12 of 50
    12. Question

    One of the following is used to dissolve noble metals. That is

  13. Question 13 of 50
    13. Question

    An emulsion is a colloid of a

  14. Question 14 of 50
    14. Question

    Percentage of carbon in steel ranges from

  15. Question 15 of 50
    15. Question

    Which of the following is not present in German-silver?

  16. Question 16 of 50
    16. Question

    The major harmful gas emitted by automobile vehicles which causes air pollution is

  17. Question 17 of 50
    17. Question

    Which one of the following is a major green house gas?

  18. Question 18 of 50
    18. Question

    The chemical name of ‘Common salt’ is

  19. Question 19 of 50
    19. Question

    Denatured spirit is ethanol mixed with

  20. Question 20 of 50
    20. Question

    The metal, which is a constituent of vitamin B₁₂ is

  21. Question 21 of 50
    21. Question

    The most abundant inert gas in the atmosphere is

  22. Question 22 of 50
    22. Question

    Which metal is extracted from seawater?

  23. Question 23 of 50
    23. Question

    Percentage of lead in lead pencils is

  24. Question 24 of 50
    24. Question

    Helium has is used in gas balloons instead of hydrogen gas because it is

  25. Question 25 of 50
    25. Question

    The gas used in the artificial ripening of fruits is

  26. Question 26 of 50
    26. Question

    Ruby and sapphire are oxides of

  27. Question 27 of 50
    27. Question

    The gas which turns into liquid at the lowest temperature among the following is

  28. Question 28 of 50
    28. Question

    Gunpowder consists of a mixture of

  29. Question 29 of 50
    29. Question

    Which of the following is the sweetest sugar?

  30. Question 30 of 50
    30. Question

    In nuclear reactors, graphite is used as a/an

  31. Question 31 of 50
    31. Question

    The process involved involved in making soap is

  32. Question 32 of 50
    32. Question

    Sea water can be purified by the process of

  33. Question 33 of 50
    33. Question

    The compound to which H₂ does not add is

  34. Question 34 of 50
    34. Question

    Ammonal is a mixture of

  35. Question 35 of 50
    35. Question

    Which gas does not form the part of atmosphere?

  36. Question 36 of 50
    36. Question

    The fuel used in an atomic reactor is

  37. Question 37 of 50
    37. Question

    The major constituent of gobar gas is

  38. Question 38 of 50
    38. Question

    The isotope of Uranium used in atomic reactors is

  39. Question 39 of 50
    39. Question

    Which one of the following is not a radio-active element?

  40. Question 40 of 50
    40. Question

    The greenhouse effect is caused by the higher level of which gas in the atmosphere?

  41. Question 41 of 50
    41. Question

    Candle is a mixture of

  42. Question 42 of 50
    42. Question

    Ethanol containing 5% water is known as

  43. Question 43 of 50
    43. Question

    Brass is an alloy of copper and

  44. Question 44 of 50
    44. Question

    The density of a gas is maximum at

  45. Question 45 of 50
    45. Question

    The important ore of aluminium is

  46. Question 46 of 50
    46. Question

    Aqua regia is a 1 : 3 mixture, by volume, of

  47. Question 47 of 50
    47. Question

    What is the maximum Water Vapour content in the atmosphere?

  48. Question 48 of 50
    48. Question

    The amount of chlorine available in water after disinfection is called as

  49. Question 49 of 50
    49. Question

    What are the major pollutants of cigarette smoke?

  50. Question 50 of 50
    50. Question

    Zinc sulphide is commonly used as

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