Solids

MDCAT • Chemistry

107 MCQs — Click "Reveal" to see the correct answer

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  1. 1
    UHS MDCAT 2008

    The crystals of _ are ionic solids:

  2. 2
    UHS MDCAT 2009

    Electron gas theory was proposed to explain the bonding in solids:

  3. 3
    UHS MDCAT 2010

    Metallic conduction involves the relatively free movement of their _ throughout the metallic lattice.

  4. 4
    UHS MDCAT 2010

    The inter-ionic distance in a crystal lattice of KCl is:

  5. 5
    UHS MDCAT 2010

    In the structure of NaCl, each Na+ is surrounded by _ Cl- ions.

  6. 6
    UHS MDCAT 2011

    Carbon exists as allotropes, which are different crystalline or molecular forms of the same substance. Graphite and diamond are allotropes of carbon. Diamond is a non-conductor whereas graphite is a good conductor because:

  7. 7
    UHS MDCAT 2016

    Electrical conductivity of graphite is greater in one direction than in another due to:

  8. 8
    UHS MDCAT 2017 (Reconduct)

    What is the reason that ice at 0˚ occupies more volume than water:

  9. 9
    UHS MDCAT 2022

    Which type of solid ls called as atomic solid?

  10. 10
    UHS MDCAT 2022

    A small building block which belongs to whole information about crystal structure is called?

  11. 11
    UHS MDCAT 2023

    In metals, why electric conductivity decreases with the increase of temperature?

  12. 12
    UHS MDCAT 2023

    In anisotropic crystals which property do not change with the change in direction of crystalline structure?

  13. 13
    UHS MDCAT 2024

    One of the following is NOT an example of amorphous solids

  14. 14
    PMDC MDCAT 2025

    Pick the crystalline solid:

  15. 15
    PMDC MDCAT 2025

    In a unit cell of a crystal lattice the angle β is between faces:

  16. 16
    PMDC MDCAT 2025

    Which one shows anisotropic behavior?

  17. 17

    Small diffusion in solid is due to:

  18. 18
    NUMS MDCAT 2024

    Iodine is a poor conductor of electricity because of:

  19. 19
    Predict the shape of CsCl having radius ratio of 0.93:
  20. 20
    Balochistan MDCAT 2024
    The term 'Transition temperature' is used for the temperature:
  21. 21
    Balochistan MDCAT 2024
    Electrically diamond is a:
  22. 22
    Sindh MDCAT 2024
    It is an example of a crystalline solid:
  23. 23
    Dry ice is the example of:
  24. 24
    When a crystalline substance conducts current in one direction but not through other directions of the crystal, this property is:
  25. 25
    The example of metallic solid is:
  26. 26
    FMDC MDCAT 2024 (Reconduct)
    The shape of NaCl according to its radius ratio is:
  27. 27
    FMDC MDCAT 2024 (Reconduct)

    Which one of the following is a non-polar molecular solid?

  28. 28

    Ag2SO4 and Na2SO4 are the:

  29. 29

    Identify the pair of solids having molecular nature:

  30. 30
    NaCl is an example of _______ arrangement of crystal lattice.
  31. 31
    FMDC MDCAT 2024

    Which of the following is an example of molecular solid?

  32. 32
    UHS MDCAT 2024
    In graphite the carbon atoms are arranged in which of the following structure?
  33. 33
    One of the following is NOT an example of amorphous solids:
  34. 34
    UHS MDCAT 2024
    Whenever the crystalline solids are broken they do so along definite planes known as:
  35. 35
    NUMS MDCAT 2023
    Co-ordination number of Na is:
  36. 36
    NUMS MDCAT 2023 NUMS MDCAT 2020
    Thermal conductivity of metals is due to:
  37. 37
    NUMS MDCAT 2023
    The greater Lattice energy is shown by:
  38. 38
    NUMS MDCAT 2023
    Which statement correctly describes the structure of sodium chloride crystal?
  39. 39
    Balochistan MDCAT 2023
    Which one of the following has no cleavage plane?
  40. 40
    Balochistan MDCAT 2023
    The system in which three angles and axes are unequal is called?
  41. 41
    The nature of attraction which holds molecular crystal is:
  42. 42
    Sindh MDCAT 2023

    Which of the following is a covalent crystal?

  43. 43

    Crystal having orthorhombic crystal system is:

  44. 44
    All of the following crystal systems have β=γ=90° except:
  45. 45
    FMDC MDCAT 2023
    Which of the following solids have strong metallic bond?
  46. 46
    Which of the following information do we obtain from Lattice energy?
  47. 47
    In metals, why does electric conductivity decrease with the increase of temperature?
  48. 48
    In anisotropic crystals which property does not change with the change in direction of crystalline structure?
  49. 49
    Which one of the following is as light as a feather and as strong as iron?
  50. 50
    NUMS MDCAT 2022 NUMS MDCAT 2021
    Nature of diamond as solid is:
  51. 51
    Balochistan MDCAT 2022
    Which one of the following is not a crystalline solid?
  52. 52
    Amorphous solids:
  53. 53
    KPK MDCAT 2022

    Which one of the following pairs of compounds is not isomorphic in nature?

  54. 54
    Which one of the following is the example of polar molecular solid?
  55. 55
    Which of the following ionic compounds has the highest value of lattice energy?
  56. 56
    The molecules of iodine (I2) form the:
  57. 57
    Which type of solid is called as atomic solid?
  58. 58
    A small building block which belongs to whole information about crystal structure called?
  59. 59
    PMC Practice Test 1 2021 PMC Practice Test 1 2022
    The smallest part of the crystal lattice has all the properties of the entire crystal, this is called:
  60. 60
    Current in electrolysis is carried through:
  61. 61
    Properties due to change of direction are called:
  62. 62
    Shape of iodine unit cell:
  63. 63
    PMDC MDCAT 2020
    The lattice energy is also called as:
  64. 64
    ETEA MDCAT 2019
    Substance that has sharp melting point in the following is:
  65. 65
    Graphite is one of the allotropic form of Carbon. It is:
  66. 66
    In diamond, each of the four outer electrons on every carbon atom is involved in covalent bonding. This means that there are no free electrons available. Which of the following property is explained by this statement?
  67. 67
    Electrical conductivity of graphite is greater in one direction than in other due to:
  68. 68
    Which one of the following has highest lattice energy?
  69. 69
    In the structure of NaCl, each sodium ion is surrounded by chloride ions:
  70. 70
    UHS MDCAT 2013

    The coordination number of Na+ in NaCl crystal is:

  71. 71

    Solid CO2 (Dry ice) is an example of _______ crystals.

  72. 72
    Which of the following is an example of polar molecular solid?
  73. 73
    Independent molecule of NaCl may exist in:
  74. 74
    The best conductors of electricity are:
  75. 75
    The coordination number of each ion in NaCl is:
  76. 76
    The number of Cl ions per unit cell of a simple cubic lattice at the corner is/are:
  77. 77
    The crystals formed due to London forces of interaction are:
  78. 78
    Molecular crystals are:
  79. 79
    The crystalline form of white Tin is:
  80. 80
    Total unit cell dimensions are:
  81. 81
    In crystal structure of NaCl, the arrangement of Cl- ions is:
  82. 82
    Coinage metals are Cu, Ag & Au and they have _______ crystal system.
  83. 83
    Crystalline part of otherwise amorphous solids are known as:
  84. 84
    Which of the following is anisotropic?
  85. 85
    In a crystal, the atoms are located at the position of:
  86. 86
    Which one has the highest melting point and boiling point?
  87. 87
    A solid may be made up of:
  88. 88
    When an element exists in more than one crystalline forms, it is known as:
  89. 89
    Which of the following is isotropic property?
  90. 90
    Transition temperature of sulphur is:
  91. 91
    Which of the following is not amorphous solid?
  92. 92
    Which of the following intermolecular forces are present in solid iodine?
  93. 93
    Which ionic solid has lowest lattice energy?
  94. 94
    Which solids are called true solids?
  95. 95
    Ionic solids are characterized by:
  96. 96
    Lattice energy decreases with the increase in size of ion because oppositely charged ions:
  97. 97
    Transition temperature is shown by which of the following pairs?
  98. 98
    The phenomena in which element exist in more than one crystalline form is:
  99. 99
    Which of the following is not a characteristic of amorphous solid?
  100. 100
    Which ionic solid has high value of lattice energy?
  101. 101
    Which substance has ability to conduct electricity in solid state?
  102. 102
    Which of the following is not a feature of solids?
  103. 103
    Every point in crystal lattice of ice represents:
  104. 104
    Which of following is not able to show allotropy?
  105. 105
    Which of following does not exist as molecular solid?
  106. 106
    Which of following is non crystalline solid pair?
  107. 107

    In water, total number of electrons involved in hydrogen bonding per H2O molecule: