Solid State MCQ

Test your knowledge with important Solid State MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Solid State MCQs at Bissoy

• Rubidium Chloride (RbCl) has NaCl like structure at normal pressures. If the radius of the Chloride ion is 1.54 Å, what is the unit cell edge length for RbCl? (Assuming anion-anion contact)
  ক

  4.25 Å

  খ

  4.78 Å

  গ

  4.32 Å

  ঘ

  5.14 Å
• If the radius of a Chloride ion is 0.154 nm, then what is the maximum size of a cation that can fit in each of its octahedral voids?
  ক

  1.15 x 10-1 nm

  খ

  1.21 x 10-1 nm

  গ

  1.18 x 10-1 nm

  ঘ

  1.13 x 10-1 nm
• A metal crystallizes into two cubic phases BCC and FCC. The ratio of densities of FCC and BCC is equal to 1.5. Calculate the difference between the unit cell lengths of the FCC and BCC crystals if the edge length of the FCC crystal is equal to 4.0 Å.
  ক

  0.5 Å

  খ

  0.37 Å

  গ

  0. 28 Å

  ঘ

  0.73 Å
• An element of density 8.0 g/cm3 forms an FCC lattice with unit cell edge of 300 pm. Calculate the number of atoms present in 0.5kg of the element.
  ক

  95 x 1023 atoms

  খ

  93.59 x 1023 atoms

  গ

  92.59 x 1023 atoms

  ঘ

  91.38 x 1023 atoms
• An element with cell edge of 288 pm has a density of 7.2 g cm-3. What type of structure does the element have if it’s atomic mass M=51.8 g mol-1?
  ক

  Body-Centred Cubic (BCC)

  খ

  Face-Centred Cubic (FCC)

  গ

  Simple Cubic

  ঘ

  Hexagonal Closed Packing (HCP)
• Lithium forms a BCC lattice with an edge length of 350 pm. The experimental density of lithium is 0.53 g cm-3. What is the percentage of missing lithium atoms? (Atomic mass of Lithium = 7 amu)
  ক

  97.7%

  খ

  95.4%

  গ

  4.6%

  ঘ

  2.3%
• Aluminium crystallises in a face-centred cubic lattice. The edge length of the unit cell of aluminium is 4.05 x 10-10m. What is the density of aluminium? (Atomic mass of Al=27)
  ক

  2700 kg m-3

  খ

  3000 kg m-3

  গ

  2400 kg m-3

  ঘ

  2100 kg m-3
• How many atoms surround the central atom present in a unit cell with the least free space available?
  ক

  4

  খ

  6

  গ

  8

  ঘ

  12
• What are the percentages of free space in a CCP and simple cubic lattice?
  ক

  52% and 74%

  খ

  48% and 26%

  গ

  26% and 48%

  ঘ

  74% and 52%
• “The packing efficiency can never be 100%”. Is this true or false?
  ক

  False

  খ

  True
• Which of the following metals would have the highest packing efficiency?
  ক

  Copper

  খ

  Potassium

  গ

  Chromium

  ঘ

  Polonium
• Arrange the types of arrangement in terms of decreasing packing efficiency.
  ক

  BCC < Simple cubic < CCP

  খ

  HCP < CCP < BCC

  গ

  HCP < BCC < Simple cubic

  ঘ

  CCP < BCC < HCP
• What is the dimensional formula of packing fraction?
  ক

  M0L3T0

  খ

  M0L0T0

  গ

  ML0T0

  ঘ

  M0L2T0
• What does the ratio ‘space occupied/total space’ denote?
  ক

  Packing factor

  খ

  Packing efficiency

  গ

  Particle fraction

  ঘ

  Packing unit
• Voids in two-dimensional hexagonal close packed structure are ___________ in shape.
  ক

  circular

  খ

  rectangular

  গ

  triangular

  ঘ

  hexagonal
• What is the coordination number for a two-dimensional hexagonal close packed structure?
  ক

  4

  খ

  8

  গ

  12

  ঘ

  6
• What is the coordination number for a two-dimensional square close packed structure?
  ক

  8

  খ

  4

  গ

  6

  ঘ

  2
• In how many ways, can the two-dimensional close packed structure be generated?
  ক

  3

  খ

  2

  গ

  1

  ঘ

  5
• What is the coordination number for one-dimensional close packing?
  ক

  2

  খ

  1

  গ

  4

  ঘ

  6
• In ______ constituent particles are closely packed leaving the least amount of vacant spaces.
  ক

  plasma

  খ

  liquids

  গ

  solids

  ঘ

  gases
• What is each point (position of particle) in a crystal lattice termed as?
  ক

  Lattice index

  খ

  Lattice point

  গ

  Lattice lines

  ঘ

  Lattice spot
• How many parameters are used to characterize a unit cell?
  ক

  Six

  খ

  Three

  গ

  Two

  ঘ

  Nine
• If the aluminum unit cell exhibits face-centered behavior then how many unit cells are present in 54g of aluminum?
  ক

  1.2042 x 1024

  খ

  5.575 x 1021

  গ

  3.011 x 1023

  ঘ

  2.4088 x 1024
• Atoms of element X form a BCC and atoms of element Y occupy 3/4th of the tetrahedral voids. What is the formula of the compound?
  ক

  X2Y3

  খ

  X3Y2

  গ

  X3Y4

  ঘ

  X4Y3
• Which of the following possess anisotropic nature within their structure?
  ক

  Hair wax

  খ

  Snowflakes

  গ

  Polythene

  ঘ

  Crystal glass
• If a crystal lattice has 6 closed-pack spheres, what the number of tetrahedral voids in the lattice?
  ক

  12

  খ

  6

  গ

  36

  ঘ

  3
• Which of the following arrangements of particles does a simple cubic lattice follow?
  ক

  ABAB

  খ

  AABB

  গ

  ABCABC

  ঘ

  AAA
• What is the coordination number of a body-centered unit cell?
  ক

  6

  খ

  12

  গ

  8

  ঘ

  4
• Which of the following unit cells has constituent particles occupying the corner positions only?
  ক

  Body-centered cell

  খ

  Primitive cell

  গ

  Face centered cell

  ঘ

  End-centered cell
• Which of the following is regarded as the ‘repeatable entity’ of a 3D crystal structure?
  ক

  Unit cell

  খ

  Lattice

  গ

  Crystal

  ঘ

  Bravais Index