1.

Which of the following statements is not true regarding hexagonal and cubic close-packed structures-

Answer»

for both structures COORDINATION number is the same
both structures have the same packing efficiencies
packing efficiency of HEXAGONAL close-packed structure is LESS than that of cubic close-packed structure
the number of particles per UNIT cell in hexagonal close-packed structure is more than that in cubic close-packed structure

Answer :C


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