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
11. A family of directions is represented by
(a) (hkl)
(b) <uvw>
(c) {hkl}
(d) [uvw]
12. Miller indices for Octahedral plane in cubic crystal
(a) (100)
(b) (110)
(c) (111)
(d) None
13. The plane (1⎯11) is parallel to
(a) (⎯11⎯1)
(b) (⎯1⎯11)
(c) (111)
(d) (1⎯11)
14. The angle between [111] and [11⎯2] directions in a cubic crystal is (in degrees)
(a) 0
(b) 45
(c) 90
(d) 180
15. Miller indices of the line of intersection of (⎯1⎯11) and (110) are
(a) [110]
(b) [101]
(c) [10⎯1]
(d) [⎯110]
16. Repeatable unit of polymers
(a) isomer
(b) copolymer
(c) homopolymer
(d) mer
17. Pick the thermo-plast from the following
(a) Vinyls
(b) Epoxies
(c) Resins
(d) Vulcanized rubber
18. For c coordination number of four, anion sits at the center of ……..where corners are occupied by cations
(a) Cube
(b) Tetrahedron
(c) Triangle
(d) Octahedron
19. Layered silicate structures in clays consists the following group
(a) SiO4
(b) Si2O5
(c) Si2O7
(d) SiO4
20. Schottky-defect in ceramic material is
(a) Interstitial impurity
(b) Vacancy- interstitial pair of cations
(c) Pair of nearby cation and anion vacancies
(d) Substitutional impurity
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