100 Important Chemistry Questions Quiz Online Basic Info Mcq’s Practice Test with Answers

Photo of Maan Ali Maan AliLast Updated: January 29, 2021

To test and also improve your general knowledge about various concepts of Chemistry, you can attempt the following mega quiz which includes 100 important mcq’s questions and answers about the subject. If you are able to score good marks in this quiz then you will definitely be able to achieve good marks in any exam related to Chemistry.

100 Important Chemistry Questions Quiz Online Basic Info Mcq’s Practice Test with Answers

 

Question 1 of 100

Mega Quiz

1. Formula of cryolite is:

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2. Borax in water is:

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3. Catalytic oxidation of benzene gives:

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4. The molecule has triple bond in it:

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5. Benzyl acetate has flavour of:

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6. An ion having negative charge is called:

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7. Non-metals tend to gain electrons, becoming:

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8. Carboxyl compounds have functional group:

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Question 9 of 100

9. The e/m value for positive rays is maximum:

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10. The nature of positive rays depends on:

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Question 11 of 100

11. Entropy is a measure of ______ system.

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Question 12 of 100

12. Molarity of pure water is:

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13. The sum of pH and pOH is:

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Question 14 of 100

14. Major component of natural gas is:

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Question 15 of 100

15. Type of isomerism in BrCH=CHBr is:

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16. Esters are used as:

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17. The mass of one mole of iodine:

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Question 18 of 100

18. Which property of oxygen resembles with sulphur?

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Question 19 of 100

19. A good reservoirs of energy to body is:

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20. Alpha rays consists of:

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21. Silica contains oxygen by weight:

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22. 4-d series is in the period:

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23. DDT is a:

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Question 24 of 100

24. The benzene molecule contains:

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Question 25 of 100

25. In 1913, Mosley used the x-rays to determine:

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Question 26 of 100

26. Mineral oil is called:

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27. Half life period of a first order reaction is independent of:

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Question 28 of 100

28. The pH of 0.001M NaOH aqueous solution is:

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Question 29 of 100

29. All gases can be compressed by:

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Question 30 of 100

30. Which is an inert gas?

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Question 31 of 100

31. Properties of metals are:

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32. Biopolymers are:

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Question 33 of 100

33. Halokanes are:

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Question 34 of 100

34. The difference of potential of two electrodes when concentration of solution is 1 M each at 25°C and 1 atm is called:

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Question 35 of 100

35. Every sample of matter with uniform properties and a fixed composition is called a:

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Question 36 of 100

36. X-rays are attracted towards:

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Question 37 of 100

37. Dextose is also called:

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Question 38 of 100

38. In exothermic reactions,  ΔH is:

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39. A limiting reactants is one:

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Question 40 of 100

40. Arenes are also called:

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Question 41 of 100

41. Reaction of HNO₃with benzene gives:

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42. A salt "X" is dissolved in water of pH 7, the resulting solution becomes alkaline in nature, salt "X" is made up of:

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Question 43 of 100

43. Which of the following is the simplest form of matter?

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44. Newland said, every eight element repeats properties of element:

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45. Organic molecules are completely burnt during incineration at temperature (C°)

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Question 46 of 100

46. A substance having sigma and pi bond in it gives:

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47. Most of the universe consists of the matter in:

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Question 48 of 100

48. What do you call the apparatus generally used for measuring heat changes?

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Question 49 of 100

49. Which one of the following has the same number of electrons as an alpha particle?

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Question 50 of 100

50. X-rays have same nature as:

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Question 51 of 100

51. Covalent compounds mostly exist in the form of:

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Question 52 of 100

52. The reasons for less experimental yield than theoretical yield are reversible reaction, side reaction and:

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53. Evaporation of water is a:

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Question 54 of 100

54. The dipole moment of water is:

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Question 55 of 100

55. A chemical reaction A →B is said to be in equilibrium when:

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56. Vegetable oils are:

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57. Inside every fluorescent lamp there is present a:

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Question 58 of 100

58. Higher alcohols are:

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Question 59 of 100

59. Fuel cells are mostly used in space aircrafts as the source of:

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Question 60 of 100

60. Oxidation of NO in air produces:

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61. Which has least melting point among the given?

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62. A pseudo uni-molecular reaction has order of reaction:

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63. Thermochemistry is the study of relationship between heat, energy and:

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Question 64 of 100

64. The force which holds together two or more atoms or ions to form a large variety of compounds is called:

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Question 65 of 100

65. Swedish chemist J. Berzelius determined:

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Question 66 of 100

66. Reaction of CO₂ with Grignard’s reagent gives:

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67. Pb has inert pair of electrons:

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Question 68 of 100

68. Catalyst changes:

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69. When rate of reaction is restarted by adding a substance, it is said to be:

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Question 70 of 100

70. Kinetic theory of gas was put forward by:

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Question 71 of 100

71. Hydrides formed between elements with E.N difference greater than 1.8 is:

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Question 72 of 100

72. The covalent radius of Cl atom is:

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Question 73 of 100

73. Ketones react with sodium nitroprusside alkaline giving precipitate:

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Question 74 of 100

74. Metals tends to lose electrons, becoming:

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Question 75 of 100

75. Cell potential depends upon:

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76. Bakelite is a:

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Question 77 of 100

77. The dipole moment of orthochlorobenzene is:

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Question 78 of 100

78. The sum of mole fractions of components of a solution is equal to:

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Question 79 of 100

79. Most stable hydrides is of:

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80. Isomers have same properties:

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Question 81 of 100

81. In an electrolytic cell, the electrons flow from:

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82. The SI unit of heat + energy is:

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83. A solution of glucose is 10%. The volume to which 1g mole of it dissolved will be:

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84. Grape sugar or blood sugar is called to:

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85. The rate of reaction:

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Question 86 of 100

86. Oxides of metals are:

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87. X-rays were discovered by:

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Question 88 of 100

88. Acetic acid is manufactured by:

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Question 89 of 100

89. Alcohols are:

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90. Which one is more toxic?

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91. Salts of dichromic acids are:

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92. SN₂ reactions can be best carried out with:

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93. Which enzyme is not involved in the fermentation of starch?

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Question 94 of 100

94. Plasma consists of:

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Question 95 of 100

95. Which will cook food more easily:

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Question 96 of 100

96. Fuel cells are the means by which chemical energy may be converted into:

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97. Buffer capacity is maximum when both components have:

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Question 98 of 100

98. Amino acids (proteins) are identified by the test:

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99. Metallic conduction is also called as:

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Uncategorized

100. Mendeleev was a scientist:

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Photo of Maan Ali Maan AliLast Updated: January 29, 2021
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