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

Maan AliLast Updated: January 29, 2021

Start your preparation for 100 Important Chemistry Questions Quiz Online Basic Info Mcq’s Practice Test with Answers. This online test contains important MCQs from past papers. Attempting this test will help you prepare for Annual Exams and Entry Tests. Read the questions carefully and select the correct option below to see your result.

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. Catalyst changes:

Question 1 of 100

Question 2 of 100

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

Question 2 of 100

Question 3 of 100

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

Question 3 of 100

Question 4 of 100

4. Bakelite is a:

Question 4 of 100

Question 5 of 100

5. Major component of natural gas is:

Question 5 of 100

Question 6 of 100

6. The benzene molecule contains:

Question 6 of 100

Question 7 of 100

7. Metals tends to lose electrons, becoming:

Question 7 of 100

Question 8 of 100

8. In exothermic reactions,  ΔH is:

Question 8 of 100

Question 9 of 100

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

Question 9 of 100

Question 10 of 100

10. The SI unit of heat + energy is:

Question 10 of 100

Question 11 of 100

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

Question 11 of 100

Question 12 of 100

12. A good reservoirs of energy to body is:

Question 12 of 100

Question 13 of 100

13. Grape sugar or blood sugar is called to:

Question 13 of 100

Question 14 of 100

14. Oxidation of NO in air produces:

Question 14 of 100

Question 15 of 100

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

Question 15 of 100

Question 16 of 100

16. Type of isomerism in BrCH=CHBr is:

Question 16 of 100

Question 17 of 100

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

Question 17 of 100

Question 18 of 100

18. The dipole moment of orthochlorobenzene is:

Question 18 of 100

Question 19 of 100

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

Question 19 of 100

Question 20 of 100

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

Question 20 of 100

Question 21 of 100

21. Dextose is also called:

Question 21 of 100

Question 22 of 100

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

Question 22 of 100

Question 23 of 100

23. Properties of metals are:

Question 23 of 100

Question 24 of 100

24. Salts of dichromic acids are:

Question 24 of 100

Question 25 of 100

25. Alcohols are:

Question 25 of 100

Question 26 of 100

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

Question 26 of 100

Question 27 of 100

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

Question 27 of 100

Question 28 of 100

28. Entropy is a measure of ______ system.

Question 28 of 100

Question 29 of 100

29. Pb has inert pair of electrons:

Question 29 of 100

Question 30 of 100

30. Halokanes are:

Question 30 of 100

Question 31 of 100

31. DDT is a:

Question 31 of 100

Question 32 of 100

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

Question 32 of 100

Question 33 of 100

33. The covalent radius of Cl atom is:

Question 33 of 100

Question 34 of 100

34. Inside every fluorescent lamp there is present a:

Question 34 of 100

Question 35 of 100

35. Buffer capacity is maximum when both components have:

Question 35 of 100

Question 36 of 100

36. Ketones react with sodium nitroprusside alkaline giving precipitate:

Question 36 of 100

Question 37 of 100

37. Catalytic oxidation of benzene gives:

Question 37 of 100

Question 38 of 100

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

Question 38 of 100

Question 39 of 100

39. Silica contains oxygen by weight:

Question 39 of 100

Question 40 of 100

40. Oxides of metals are:

Question 40 of 100

Question 41 of 100

41. Which is an inert gas?

Question 41 of 100

Question 42 of 100

42. Carboxyl compounds have functional group:

Question 42 of 100

Question 43 of 100

43. The sum of pH and pOH is:

Question 43 of 100

Question 44 of 100

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

Question 44 of 100

Question 45 of 100

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

Question 45 of 100

Question 46 of 100

46. Which property of oxygen resembles with sulphur?

Question 46 of 100

Question 47 of 100

47. Cell potential depends upon:

Question 47 of 100

Question 48 of 100

48. SN₂ reactions can be best carried out with:

Question 48 of 100

Question 49 of 100

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

Question 49 of 100

Question 50 of 100

50. Kinetic theory of gas was put forward by:

Question 50 of 100

Question 51 of 100

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

Question 51 of 100

Question 52 of 100

52. Mineral oil is called:

Question 52 of 100

Question 53 of 100

53. The molecule has triple bond in it:

Question 53 of 100

Question 54 of 100

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

Question 54 of 100

Question 55 of 100

55. Evaporation of water is a:

Question 55 of 100

Question 56 of 100

56. Which will cook food more easily:

Question 56 of 100

Question 57 of 100

57. An ion having negative charge is called:

Question 57 of 100

Question 58 of 100

58. Esters are used as:

Question 58 of 100

Question 59 of 100

59. Plasma consists of:

Question 59 of 100

Question 60 of 100

60. X-rays were discovered by:

Question 60 of 100

Question 61 of 100

61. Borax in water is:

Question 61 of 100

Question 62 of 100

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

Question 62 of 100

Question 63 of 100

63. Biopolymers are:

Question 63 of 100

Question 64 of 100

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

Question 64 of 100

Question 65 of 100

65. Molarity of pure water is:

Question 65 of 100

Question 66 of 100

66. 4-d series is in the period:

Question 66 of 100

Question 67 of 100

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

Question 67 of 100

Question 68 of 100

68. Which has least melting point among the given?

Question 68 of 100

Question 69 of 100

69. Metallic conduction is also called as:

Question 69 of 100

Question 70 of 100

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

Question 70 of 100

Question 71 of 100

71. The nature of positive rays depends on:

Question 71 of 100

Question 72 of 100

72. Covalent compounds mostly exist in the form of:

Question 72 of 100

Question 73 of 100

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

Question 73 of 100

Question 74 of 100

74. Which one is more toxic?

Question 74 of 100

Question 75 of 100

75. The mass of one mole of iodine:

Question 75 of 100

Question 76 of 100

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

Question 76 of 100

Question 77 of 100

77. Swedish chemist J. Berzelius determined:

Question 77 of 100

Question 78 of 100

78. Isomers have same properties:

Question 78 of 100

Question 79 of 100

79. Most stable hydrides is of:

Question 79 of 100

Question 80 of 100

80. X-rays are attracted towards:

Question 80 of 100

Question 81 of 100

81. The rate of reaction:

Question 81 of 100

Question 82 of 100

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

Question 82 of 100

Question 83 of 100

83. Benzyl acetate has flavour of:

Question 83 of 100

Question 84 of 100

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

Question 84 of 100

Question 85 of 100

85. The dipole moment of water is:

Question 85 of 100

Question 86 of 100

86. Alpha rays consists of:

Question 86 of 100

Question 87 of 100

87. A limiting reactants is one:

Question 87 of 100

Question 88 of 100

88. Vegetable oils are:

Question 88 of 100

Question 89 of 100

89. All gases can be compressed by:

Question 89 of 100

Question 90 of 100

90. Arenes are also called:

Question 90 of 100

Question 91 of 100

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

Question 91 of 100

Question 92 of 100

92. Acetic acid is manufactured by:

Question 92 of 100

Question 93 of 100

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

Question 93 of 100

Question 94 of 100

94. Higher alcohols are:

Question 94 of 100

Question 95 of 100

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

Question 95 of 100

Question 96 of 100

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

Question 96 of 100

Question 97 of 100

97. Reaction of HNO₃with benzene gives:

Question 97 of 100

Question 98 of 100

98. X-rays have same nature as:

Question 98 of 100

Question 99 of 100

99. Formula of cryolite is:

Question 99 of 100

Question 100 of 100

Uncategorized

100. Mendeleev was a scientist:

Question 100 of 100


 

How to Score High in 100 Important Chemistry Questions Quiz Online Basic Info Mcq’s Practice Test with Answers?

Mastering scientific subjects requires conceptual clarity.

Key Preparation Tips:

  • Concepts First: Ensure you understand the underlying theories before attempting the MCQs.
  • Time Management: Attempt this online quiz multiple times to improve your speed.

Can't find what you're looking for? Search below:

Latest Updates

Maan AliLast Updated: January 29, 2021

Maan Ali

Hey there! I'm Maan Ali, your online test prep pal. Join me in the adventure of acing exams with ease. I'll share tricks, practice tests, and all you need to rock your studies. Let's make learning fun and success a sure thing!
Show one comment

One Comment

Leave a Reply

Your email address will not be published. Required fields are marked *

© Copyright 2026, All Rights Reserved  |  Gotest
Back to top button