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

1. Catalytic oxidation of benzene gives:

2. Isomers have same properties:

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

4. Silica contains oxygen by weight:

5. Oxides of metals are:

6. Dextose is also called:

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

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

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

10. Biopolymers are:

11. The mass of one mole of iodine:

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

13. Molarity of pure water is:

14. Benzyl acetate has flavour of:

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

16. DDT is a:

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

18. Arenes are also called:

19. Carboxyl compounds have functional group:

20. The nature of positive rays depends on:

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

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

23. Which is an inert gas?

24. Evaporation of water is a:

25. Which has least melting point among the given?

26. Inside every fluorescent lamp there is present a:

27. The molecule has triple bond in it:

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

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

30. The benzene molecule contains:

31. Which will cook food more easily:

32. An ion having negative charge is called:

33. Esters are used as:

34. Salts of dichromic acids are:

35. Oxidation of NO in air produces:

36. Swedish chemist J. Berzelius determined:

37. Alcohols are:

38. SN₂ reactions can be best carried out with:

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

40. Most stable hydrides is of:

41. Buffer capacity is maximum when both components have:

42. X-rays were discovered by:

43. Plasma consists of:

44. Alpha rays consists of:

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

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

47. X-rays have same nature as:

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

49. Major component of natural gas is:

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

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

52. Entropy is a measure of ______ system.

53. A limiting reactants is one:

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

55. Acetic acid is manufactured by:

56. Which property of oxygen resembles with sulphur?

57. The dipole moment of orthochlorobenzene is:

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

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

60. Pb has inert pair of electrons:

61. Which one is more toxic?

62. 4-d series is in the period:

63. The SI unit of heat + energy is:

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

65. Metallic conduction is also called as:

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

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

68. Mineral oil is called:

69. Bakelite is a:

70. Halokanes are:

71. Catalyst changes:

72. Formula of cryolite is:

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

74. Cell potential depends upon:

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

76. The sum of pH and pOH is:

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

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

79. Vegetable oils are:

80. The dipole moment of water is:

81. Type of isomerism in BrCH=CHBr is:

82. A good reservoirs of energy to body is:

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

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

85. Ketones react with sodium nitroprusside alkaline giving precipitate:

86. In exothermic reactions,  ΔH is:

87. The covalent radius of Cl atom is:

88. Kinetic theory of gas was put forward by:

89. Borax in water is:

90. The rate of reaction:

91. Reaction of HNO₃with benzene gives:

92. X-rays are attracted towards:

93. Higher alcohols are:

94. Metals tends to lose electrons, becoming:

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

96. All gases can be compressed by:

97. Properties of metals are:

98. Covalent compounds mostly exist in the form of:

99. Grape sugar or blood sugar is called to:

100. Mendeleev was a scientist: