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. Reaction of CO₂ with Grignard’s reagent gives:

Question 1 of 100

Question 2 of 100

2. A limiting reactants is one:

Question 2 of 100

Question 3 of 100

3. Benzyl acetate has flavour of:

Question 3 of 100

Question 4 of 100

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

Question 4 of 100

Question 5 of 100

5. Vegetable oils are:

Question 5 of 100

Question 6 of 100

6. In exothermic reactions,  ΔH is:

Question 6 of 100

Question 7 of 100

7. DDT is a:

Question 7 of 100

Question 8 of 100

8. Alcohols are:

Question 8 of 100

Question 9 of 100

9. Silica contains oxygen by weight:

Question 9 of 100

Question 10 of 100

10. Metallic conduction is also called as:

Question 10 of 100

Question 11 of 100

11. Swedish chemist J. Berzelius determined:

Question 11 of 100

Question 12 of 100

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

Question 12 of 100

Question 13 of 100

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

Question 13 of 100

Question 14 of 100

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

Question 14 of 100

Question 15 of 100

15. Catalytic oxidation of benzene gives:

Question 15 of 100

Question 16 of 100

16. The covalent radius of Cl atom is:

Question 16 of 100

Question 17 of 100

17. Which one is more toxic?

Question 17 of 100

Question 18 of 100

18. Alpha rays consists of:

Question 18 of 100

Question 19 of 100

19. Reaction of HNO₃with benzene gives:

Question 19 of 100

Question 20 of 100

20. X-rays are attracted towards:

Question 20 of 100

Question 21 of 100

21. Which has least melting point among the given?

Question 21 of 100

Question 22 of 100

22. The SI unit of heat + energy is:

Question 22 of 100

Question 23 of 100

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

Question 23 of 100

Question 24 of 100

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

Question 24 of 100

Question 25 of 100

25. Carboxyl compounds have functional group:

Question 25 of 100

Question 26 of 100

26. SN₂ reactions can be best carried out with:

Question 26 of 100

Question 27 of 100

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

Question 27 of 100

Question 28 of 100

28. 4-d series is in the period:

Question 28 of 100

Question 29 of 100

29. The dipole moment of orthochlorobenzene is:

Question 29 of 100

Question 30 of 100

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

Question 30 of 100

Question 31 of 100

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

Question 31 of 100

Question 32 of 100

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

Question 32 of 100

Question 33 of 100

33. Ketones react with sodium nitroprusside alkaline giving precipitate:

Question 33 of 100

Question 34 of 100

34. Salts of dichromic acids are:

Question 34 of 100

Question 35 of 100

35. Metals tends to lose electrons, becoming:

Question 35 of 100

Question 36 of 100

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

Question 36 of 100

Question 37 of 100

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

Question 37 of 100

Question 38 of 100

38. Evaporation of water is a:

Question 38 of 100

Question 39 of 100

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

Question 39 of 100

Question 40 of 100

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

Question 40 of 100

Question 41 of 100

41. X-rays were discovered by:

Question 41 of 100

Question 42 of 100

42. Borax in water is:

Question 42 of 100

Question 43 of 100

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

Question 43 of 100

Question 44 of 100

44. The mass of one mole of iodine:

Question 44 of 100

Question 45 of 100

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

Question 45 of 100

Question 46 of 100

46. Major component of natural gas is:

Question 46 of 100

Question 47 of 100

47. The nature of positive rays depends on:

Question 47 of 100

Question 48 of 100

48. Pb has inert pair of electrons:

Question 48 of 100

Question 49 of 100

49. Mineral oil is called:

Question 49 of 100

Question 50 of 100

50. The rate of reaction:

Question 50 of 100

Question 51 of 100

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

Question 51 of 100

Question 52 of 100

52. X-rays have same nature as:

Question 52 of 100

Question 53 of 100

53. Esters are used as:

Question 53 of 100

Question 54 of 100

54. Which will cook food more easily:

Question 54 of 100

Question 55 of 100

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

Question 55 of 100

Question 56 of 100

56. Inside every fluorescent lamp there is present a:

Question 56 of 100

Question 57 of 100

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

Question 57 of 100

Question 58 of 100

58. Cell potential depends upon:

Question 58 of 100

Question 59 of 100

59. All gases can be compressed by:

Question 59 of 100

Question 60 of 100

60. Isomers have same properties:

Question 60 of 100

Question 61 of 100

61. An ion having negative charge is called:

Question 61 of 100

Question 62 of 100

62. The sum of pH and pOH is:

Question 62 of 100

Question 63 of 100

63. A good reservoirs of energy to body is:

Question 63 of 100

Question 64 of 100

64. The molecule has triple bond in it:

Question 64 of 100

Question 65 of 100

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

Question 65 of 100

Question 66 of 100

66. Plasma consists of:

Question 66 of 100

Question 67 of 100

67. Kinetic theory of gas was put forward by:

Question 67 of 100

Question 68 of 100

68. Which property of oxygen resembles with sulphur?

Question 68 of 100

Question 69 of 100

69. Covalent compounds mostly exist in the form of:

Question 69 of 100

Question 70 of 100

70. Dextose is also called:

Question 70 of 100

Question 71 of 100

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

Question 71 of 100

Question 72 of 100

72. Properties of metals are:

Question 72 of 100

Question 73 of 100

73. Halokanes are:

Question 73 of 100

Question 74 of 100

74. Buffer capacity is maximum when both components have:

Question 74 of 100

Question 75 of 100

75. The dipole moment of water is:

Question 75 of 100

Question 76 of 100

76. Formula of cryolite is:

Question 76 of 100

Question 77 of 100

77. Oxidation of NO in air produces:

Question 77 of 100

Question 78 of 100

78. Grape sugar or blood sugar is called to:

Question 78 of 100

Question 79 of 100

79. Higher alcohols are:

Question 79 of 100

Question 80 of 100

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

Question 80 of 100

Question 81 of 100

81. The benzene molecule contains:

Question 81 of 100

Question 82 of 100

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

Question 82 of 100

Question 83 of 100

83. Most stable hydrides is of:

Question 83 of 100

Question 84 of 100

84. Catalyst changes:

Question 84 of 100

Question 85 of 100

85. Oxides of metals are:

Question 85 of 100

Question 86 of 100

86. Which is an inert gas?

Question 86 of 100

Question 87 of 100

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

Question 87 of 100

Question 88 of 100

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

Question 88 of 100

Question 89 of 100

89. Bakelite is a:

Question 89 of 100

Question 90 of 100

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

Question 90 of 100

Question 91 of 100

91. Molarity of pure water is:

Question 91 of 100

Question 92 of 100

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

Question 92 of 100

Question 93 of 100

93. Arenes are also called:

Question 93 of 100

Question 94 of 100

94. Acetic acid is manufactured by:

Question 94 of 100

Question 95 of 100

95. Entropy is a measure of ______ system.

Question 95 of 100

Question 96 of 100

96. Type of isomerism in BrCH=CHBr is:

Question 96 of 100

Question 97 of 100

97. Biopolymers are:

Question 97 of 100

Question 98 of 100

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

Question 98 of 100

Question 99 of 100

99. Hydrides formed between elements with E.N difference greater than 1.8 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