The Solid State Test

The Solid State

This is The Solid State Test-02 for CBSE class 12 Chemistry.. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
Substances that are strongly attracted by applied magnetic field and can be permanently magnetized are
  • A
    Paramagnetic
  • B
    Diamagnetic
  • C
    Ferromagnetic
    Correct
  • D
    Ferrimagnetic
2
Defects in solids can be studied using
  • A
    Scanning electron microscopy
  • B
    Optical microscopy
  • C
    All of these
    Correct
  • D
    X – ray diffraction
3
Solids with conductivities ranging from${10^4}to{\text{ }}{10^7}oh{m^{-{\text{ }}1}}{m^{-{\text{ }}1}}$ are
  • A
    insulators
  • B
    Conductors
    Correct
  • C
    non – metals
  • D
    semi conductors
4
Which substance has conductivity in the range ${10^{-{\text{ }}20}}to{\text{ }}{10^{-{\text{ }}10}}oh{m^{-{\text{ }}1}}{m^{-{\text{ }}1}}$?
  • A
    Copper
  • B
    Germanium
  • C
    Rubber
    Correct
  • D
    Silver
5
Which type of solid conduct electricity in molten state but not in solid state?
  • A
    Ionic
    Correct
  • B
    Metallic
  • C
    Covalent
  • D
    Network
6
Point defect is also known as
  • A
    Two dimensional defect
  • B
    Zero dimensional defect
    Correct
  • C
    Single dimensional defect
  • D
    none of these
7
Semi conductors have conductivity (in $oh{m^{-{\text{ }}1}}{m^{-{\text{ }}1}}$) in the range of
  • A
    $10 ^{– 20} to 10^4$
  • B
    $10^4 to 10^7$
  • C
    $10^ {– 20} to 10 ^{– 10}$
  • D
    $10^{–6} to 10^4$
    Correct
8
Yellow colour of NaCl crystals in sodium vapour is due to
  • A
    F center
    Correct
  • B
    excess of chlorine
  • C
    less of sodium
  • D
    less of chlorine
9
Dislocation defect is also known as
  • A
    frenkel defects
    Correct
  • B
    interstitial defects
  • C
    metal excess defect
  • D
    schottky defect
10
Solid X is a very hard electrical insulator in solid as well as in molten state. It melts at extremely high temperature. Solid X is a
  • A
    metallic solid
  • B
    molecular solid
  • C
    covalent solid
    Correct
  • D
    ionic solid
11
Nature of binding forces present in carbondioxide molecules in solid state are
  • A
    Metallic forces
  • B
    electrostatic forces
  • C
    London forces
    Correct
  • D
    hydrogen bonding
12
Order of increasing melting points among $H_2O$(s) , C(s) , $CS_2$ and Sn is
  • A
    ${\text{C}}{{\text{S}}_{\text{2}}}{\text{ < C < }}{{\text{H}}_{\text{2}}}{\text{O < Sn}}$
  • B
    ${\text{C}}{{\text{S}}_{\text{2}}}{\text{ < }}{{\text{H}}_{\text{2}}}{\text{O < Sn < C}}$
    Correct
  • C
    $Sn < C < {H_2}O < C{S_2}$
  • D
    $C < {H_2}O < C{S_2} < Sn$
13
What type of interaction hold the molecules together in a polar molecular solid?
  • A
    Dipole – dipole interaction
    Correct
  • B
    London forces
  • C
    Hydrogen bonding
  • D
    Metallic bonding
14
An atom located at the body center of a cubic unit cell is shared by
  • A
    2 adjacent unit cells
  • B
    4 adjacent unit cells
  • C
    8 adjacent unit cells
  • D
    no other unit cells
    Correct
15
Ionization enthalpy is lowest in
  • A
    All of these
  • B
    Covalent bond
  • C
    Metallic bond
    Correct
  • D
    Hydrogen bond