ThePrismSolutions

ThePrismSolutions

DAILY PRACTICE PAPER(14Th June 2018)

(1) Which one is called pseudo solid-

(a) CaF2     (b) Glass
(c) Nacl     (d) All

(2) Graphite is an example of-

(a) Ionic solid        (b) Covalent solid
(c) Molecular Solid    (d) Mettalic crystal

(Q) The arrangement ABC ABC............ is referred to as :

(a) Octahedral close packing
(b) Hexagonal close packing
(c) Tetrahedral Close packing
(d) Cubic Close packing

(Q) The rank (effective atoms per unit cell) of a cubic unit cell is 4. The type of cell as :

(a) Body Centred   (b) Face Centred
(c) Primitive     (d) None of these

(Q) In a close pack array of N spheres, the number of tetrahedral holes are :

(a) 4N    (b) N/2
(c) 2N    (d) N



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