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प्रश्न
Which of the following lattices has the highest packing efficiency (i) simple cubic (ii) body-centred cubic and (iii) hexagonal close-packed lattice?
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उत्तर १
Hexagonal close-packed lattice has the highest packing efficiency of 74%. The packing efficiencies of simple cubic and body-centred cubic lattices are 52.4% and 68% respectively.
उत्तर २
Packing efficiency of:-
Simple cubic = 52.4% bcc = 68% hcp = 74%
hcp lattice has the highest packing efficiency
संबंधित प्रश्न
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(A) α = β = γ = 90° and a = b = c
(B) α ≠ β ≠ γ = 90° and a ≠ b ≠ c
(C) α = γ = 90°, β ≠ 90° and a ≠ b ≠ c
(D) α ≠ β ≠ γ ≠ 90° and a ≠ b ≠ c
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2) +6 and + 4
3) +6 and +3
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i)
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2Ag+ + Cd → 2Ag + Cd2+
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(ii)
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