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Which of the following statements is true with regards to crystalline solids?

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Important Questions on Solid State

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Read the following statements and identify the correct option.
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If a, b, c are the lengths of three edges of unit cell, α is the angle between side b and c, β is the angle between side a and c and γ is the angle between side a and b, what is the Bravais Lattice dimensions of a tetragonal crystal?
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Which among the following is the most symmetrical crystal system?
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Cu crystallizes as face centred cubic lattice with edge length of 3.56A°. What will be the nearest distance between Cu atoms?
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What is the number of octahedral void(s) per atom present in a cubic close-packed structure ?
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What are the coordination numbers (C.N.) of Ca2+ and F- ion in calcium fluoride CaF2 crystal structure ?
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A type of defect observed in stoichiometric compounds is Schottky defect. Schottky defect occur mainly in ionic compounds where
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A common observation seen in Fe3O4 is that it is ferrimagnetic at room temperature but at 850 K it becomes