MDCAT Chemistry Liquids and Solids Test Online

1. Crystals can be classified into

2. The increasing vapour caused by heating a liquid is due to

3. Which of the following is an example of body centered cube?

4. The total number of protons in 10 g of calcium carbonate in (N₀ = 6.023 x 10²³)

5. Correct order of intermolecular forces

6. Which of the following metal oxides is anti-ferromagnetic in nature?

7. Which of the following substance is amorphous in nature?

8. Mean distance between atoms in the range of

9. In a cubic lattice, a unit cell is shared equally by how many unit cells?

10. Isomorphic substance have

11. Fluted filter paper is used for

12. What is the pressure of 2 mole of NH₃ at 27°C when its volume is 5 lit in Van der Waals equation? (a = 0.17, b = 0.03711)

13. Current strength measure by electrometer by each type of ions in mass spectrometry shows?

14. Which one is not the partial pressure of oxygen in air

15. Which of the following statement is correct if the intermolecular forces in liquids A, B and C are in the order A < B < C?

16. Consider the physical properties of the gases. Which of the following statements about particles of gasses is incorrect? The particles are

17. Isotopes differ in

18. An alkaloid contains 17.28% of nitrogen and its molecular mass is 162. The number of nitrogen atoms present in one molecule of alkaloid is:

19. 4.4 g of CO₂ contains how many liters of CO₂ at STP?

20. In case of elements the polymorphism is called

21. Which of the following statements is (are correct)?

22. Ice is ________ crystal

23. When one of the following statements is wrong for gases?

24. The allotropic forms of an element are called

25. Triple point of water is

26. Air at sea level is dense. This is a practical application of

27. For c coordination number of four, anion sits at the center of ________ where corners are occupied by cations

28. What will be the external pressure at which water may boil at 120°C?

29. When the temperature is raised, the viscosity of the liquid decreases. This is because of

30. In which one of the following does the central atom not possess an ‘octet’ in its outer shell?

31. Gooch crucible is used for the filtration of precipitates having

32. Which of the following statements about amorphous solids is incorrect?

33. Graphite is a good conductor of electricity due to the presence of ________.

34. Which of the following statements about graphite is not true?

35. Distribution law is employed in which one of the following

36. What is the relative rate of effusion of CO and CO₂?

37. The number of atoms contained in 11.2 L of SO₂ at S.T.P. are

38. A solution of 10 mL of M/10 FeSO₄ was titrated with KMnO₄ solution in acidic medium, the amount of KMnO₄ used will be

39. The molar volume of CO₂ is maximum at

40. Which forms metallic crystals?

41. If we consider that 1/6, in place of 1/12, mass of carbon atom is taken to be the relative atomic mass unit, the mass of one mole of substance will

42. Super conductors are derived from compounds of

43. The reaction 4NH₃ + 3O₂ → 2N₂ + 6H₂O indicates that

44. To prepare the medium sized crystal the hot filtrate is cooled

45. The volume occupied by 1.4g of N₂ at S.T.P is

46. Gases deviate from ideal behavior at high pressure. Which of the following is correct for non – ideality?

47. In diamond, the carbon atoms are arranged in a

48. The crystal structure having face centered cubic arrangement is

49. Among solids, the highest melting point is exhibited by

50. The major binding force of diamond, silicon and quartz is

51. The surface formed by the breakage of a crystal is called _________ plane.

52. Poor conductors of electricity is a characteristic of

53. The ratio of close packed atoms to tetrahedral holes in cubic close packing is

54. The weight of one molecule of a compound C₆₀H₁₂₂ is

55. The deviation of a gas from ideal behavior is maximum at

56. The M.P of ice at Kelvin scale is 237K° and B.P of water is 373 K. This is a known fact that the molar volumes of different gases at S.T.P are

57. Which of the following techniques is a type paper chromatography in which solvent is in a pool at the bottom of the vessel?

58. What is the concentration of nitrate ions, if equal volumes of 0.1 M AgNO₃ and 0.1 M NaCl are mixed together?

59. 3.2 g of oxygen (At. Wt. = 16) and 0.2 g of hydrogen (At. Wt. = 1) are placed in a 1.12 L flask at 0°C. The total pressure of the gas mixture will be

60. The ratio of most probable velocity to that of average velocity is

61. The beaker contains slurry of ice and water, the three thermometers Fahrenheit, Kelvin and centigrade placed in it. The thermometers are represented as A, B and C respectively. On which thermometer the lowest reading will be?

62. Which of the following has least mass?

63. The vapour density of a gas is 11.2. The volume occupied by 11.2 g of this gas at N.T.P. is

64. Amorphous solids

65. Potassium crystallizes with a

66. Isomorphic substances have

67. Which of the following crystal does not possess the cubic closed packed arrangement?

68. Solvent extraction is mostly applied to separate

69. The kinetic energy of 4 moles of nitrogen gas at 127°C is? cals. (R = 2 cal mol¯¹ K¯¹)

70. Which solids are called true solids?

71. Which one is not postulated in the kinetic molecular theory among the followings?

72. The body centered cubic arrangement is found in the crystal of

73. Which of the following does not represent a type of crystal system?

74. The pure crystalline substance on being heated gradually first forms a turbid liquid at constant temperature and still at higher temperature turbidity completely disappears. The behavior is a characteristic of substance forming

75. The relative atomic mass of chlorine is 35.5. What is the m ass of 2 moles of chlorine gas?

76. A malleable solid is one which can be

77. Which of the following equations represents the 2nd ionization energy of Na?

78. A compound formed by elements X and Y crystallizes in a cubic structure in which the X atoms are at the corners of a cube and the Y atoms are at the face-centered. The formula of the compound is

79. Half atmospheric pressure is

80. The introduction of Kelvin scale in thermometry is according to

81. An organic compound contains 49.3% carbon, 6.84% hydrogen and its vapour density is 73. Molecular formula of compound is

82. How many Cl¯ ions are there around Na⁺ ion in NaCl crystal?

83. At constant temperature, the pressure of an ideal gas is doubled, its density becomes

84. Crystalline solids can be identified easily from their

85. Which of the following are more temperature sensitive?

86. Amorphous substances possess

87. Crystal can be classified in to _______ basic crystal habits

88. Simple molecules or giant macromolecules are examples of

89. Crystalline solids can be identified easily by their

90. Particles that most effects material properties

91. In a crystal a ≠ b ≠ c, a = ϒ = 90° and β ≠ 90°. It is

92. A bottle of copper (II) oxide has been contaminated with some solid, NaCl, How can NaCl be removed from the Copper (II) oxide?

93. Which of the following substances is not amorphous?

94. 50dm³ of CO is burnt completely according to reaction 2CO + O₂ – 2CO₂ Choose the correct statement

95. The existence of a substance in more than one solid modification is known as

96. A semiconductor of Ge can be made p-type by adding

97. How many allotropic forms are present in carbon?

98. The total number of lattice arrangements in different crystal system is

99. The material possessing superconducting properties is

100. Pressure remaining constant at which temperature the volume of a gas will become twice o what it is at 0°C

101. The molecules of air don’t settle down. The is due to

102. Two moles of an ideal gas at 1 atm are compressed to 2 atm at 273 K. The enthalpy change for the process is

103. The insoluble impurities in the saturated solution are removed by

104. The volume in liters of CO₂ liberated at STP when 10 grams of 90% pure limestone is heated completely is

105. Hydrogen diffuses six times faster than gas A. The molar mass gas of gas A is

106. The phenomenon in which a compound exists in two or more crystalline forms is called

107. If rate of diffusion of A is 5 times that of B, what will be the density ratio of A and B?

108. Van der Waal’s forces exist in

109. Wt. of 112 ml of oxygen at STP on liquefaction would be

110. Which of the following pairs do not form a dative covalent bond to each other?

111. At STP, a container has 1 mole of Ar, 2 moles of CO₂, 3 moles of O₂ and 4 moles of N₂, Without changing the total pressure if one mole of O₂ is removed, the partial pressure of O₂

112. The top of funnel stem should touch the side of the beaker because

113. Coordination number of Zn and ZnS (Zinc blends) is

114. Which of the following is a pseudo solid?

115. Which is trigonal crystal?

116. Which is distilled first?

117. If the four tubes of a car are filled to the same pressure with N₂, O₂, H₂ and helium separately, then which one will be filled first

118. The most efficient solvent extraction method is by using

119. Which of the following is isotropic

120. ‘x’ grams of calcium carbonate was completely burnt in air. The weight of the solid residue formed is 28 g. What is the value of ‘x’ in grams?

121. A real gas most closely approaches the behavior of an ideal gas at

122. The example of hexagonal system is

123. Number of atoms in 558.5 g of Fe (At. Mass of Fe = 55.85 g mole¯¹) is

124. Which one is not usually used for the crystallization?

125. Imagine a man is sitting in a room. The room is closed from all sides, no entry, no exit of any gas. If the room expands suddenly then

126. The rate of diffusion of a gas is proportional to

127. The mass of one mole of electron is

128. A solid may be made up of

129. In which process solid phase and vapour phase are directly involved?

130. In NaCl type structure, the coordination numbers of cation and anions are

131. Amorphous substance posses

132. Glass is a

133. Under what conditions real gases deviate from ideal behavior

134. Bragg’s law is given by equation

135. Repeatable entity of a crystal structure is known as

136. Which of the following contain maximum number of atoms?

137. Formation of a cation is?

138. The phenomenon in which a single substance exist in two or more crystalline forms is called

139. The following statements contained in a student’s laboratory report is a conclusion

140. Ionic solids are characterized by

141. In crystal structure of sodium chloride, the arrangement of Cl ions is

142. Solvents of covalent compounds include all but

143. 100 g of CaCO₃ is treated with 1 liter of 1 NHCl. What would be the weight of CO₂ liberated after the completion of the reaction?

144. a ≠ b ≠ c, ∞ ≠ β ≠ r ≠ 90 is representation of

145. The coordination number 8:8 is found in the arrangement of

146. When the following reaction equations is properly balanced, the number of moles of O₂ will be
C₃H₈ + O₂ → CO₂ + H₂O

147. In the equation PV = nRT which one cannot be numerically equal to R

148. Which one of the following pair of atoms is most likely to from an ionic bond?

149. In forming an ionic bond in potassium fluoride, the potassium ion

150. In which of the following compounds H – bonding is not present?