( Best 50+ ) Crystallography MCQ

by Mr. DJ

Crystallography MCQ

Crystallography Definition 

Crystallography is the experimental science of determining the arrangement of atoms in crystalline solids. The word “crystallography” is derived from the Greek words crystallon “cold drop, frozen drop”, with its meaning extending to all solids with some degree of transparency, and graphein “to write”.

Crystallography MCQ

Crystallography MCQ

  1. Which of the following is not an amorphous material?
    a) Glass
    b) Plastics
    c) Lead
    d) Rubbers

 

  1.  The crystal lattice has a _________ arrangement.
    a) One-dimensional
    b) Two-dimensional
    c) Three-dimensional
    d) Four-dimensional

 

  1. The smallest portion of the lattice is known as __________
    a) Lattice structure
    b) Lattice point
    c) Bravais crystal
    d) Unit cell

 

  1. . Bravais lattice consists of __________ space lattices.
    a) Eleven
    b) Twelve
    c) Thirteen
    d) Fourteen

 

  1.  A unit cell that contains lattice points only at the corners is known as _________
    a) Primitive unit cell
    b) Secondary unit cell
    c) Layered unit cell
    d) Derived unit cell

 

  1. The interracial angles of a triclinic crystal system are given by __________
    a) α = β = ϒ = 90o
    b) α = β = 90o ϒ = 120o
    c) α = β = ϒ ≠ 90o
    d) α ≠ β ≠ ϒ ≠ 90o

 

  1. The interracial angles of a hexagonal crystal system are given by __________
    a) α = β = ϒ = 90o
    b) α = β = 90o ϒ = 120o
    c) α = β = ϒ ≠ 90o
    d) α ≠ β ≠ ϒ ≠ 90o

 

  1.  X-ray diffractometers are not used to identify the physical properties of which of the following?
    a) Metals
    b) Liquids
    c) Polymeric materials
    d) Solids

 

  1.  X-ray diffraction patterns are used for studying crystal structure of solids because
    a) They have very high energy, hence they can penetrate through solids
    b) They are electromagnetic radiation, and hence do not interact with matter (crystals)
    c) Their wavelengths are comparable to inter-atomic distances
    d) Their high frequency enables rapid analysis

 

  1.   In Bragg’s equation [nλ = 2.d.sinθ], θ is the angle between:
    a) specimen surface and incident rays
    b) normal to specimen surface and incident rays
    c) parallel lattice surfaces d distance apart and incident rays
    d) normal to parallel lattice surfaces d distance apart and incident rays
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