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The Solid State — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryThe Solid State3 Marks
Question
. Match the type of packing given in Column I with the items given in Column II.
 
Column I
 
Column II
(i)
Square close packing in two dimensions
(a)
 Triangular voids.
(ii)
 Hexagonal close packing in two dimensions
(b)
 Pattern of spheres is repeated in every fourth layer.
(iii)
 Hexagonal close packing in three dimensions
(c)
 Coordination number 4.
(iv)
 Cubic close packing in three dimensions
(d)
 Pattern of sphere is repeated in alternate layers.
✓

Answer

 
Column I
 
Column II
(i)
Square close packing in two dimensions
(c)
 Coordination number 4.
(ii)
 Hexagonal close packing in two dimensions
(a)
 Triangular voids.
(iii)
 Hexagonal close packing in three dimensions
(d)
 Pattern of sphere is repeated in alternate layers.
(iv)
 Cubic close packing in three dimensions
(b)
 Pattern of spheres is repeated in every fourth layer.

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