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Earn 100

The number of tetrahedral voids in a unit cell of cubical close packed structure is _____

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Important Questions on Solid State

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In octahedral voids, _______
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In a HCP arrangement, the number of nearest neighbours is ________.
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For some crystals, the radius ratio for cation and anion is 0.525. Its coordination number will be_______.      
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The number of equidistant, oppositely charged ions in a sodium chloride crystal is_______.  
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If the ratio of cation to anion is in the range of 0.225  0.414, then the coordination number of cation will be  _______.
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Which of the following is/are pseudo solids?
I. KCl
II. Barium chloride dihydrate
III. Rubber
IV. Solid cake left after distillation of coal tar

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Choose the correct statements:
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Copper crystallises in a structure of face centerd cubic unit cell. The atomic radius of copper is 1.28 A. What is axial length on an edge of copper.