If AgI crystallizes in zinc blende structure with I– ions at lattice points, what fraction of tetrahedral voids is occupied by Ag+ ions?
If the distance between Na+ and Cl– ions in sodium chloride crystal is X pm, the length of the edge of the unit cell is |
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If Z is the number of atoms in the unit cell that represents the closest packing sequence ABC ABC_____, the number of tetrahedral voids in the unit cell is equal to |
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In a face centredcubic (fcc) arrangement, the number of atoms per unit cell is |
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In a face centred cubic lattice, atom A occupies the corner positions and atom B occupies the face centre positions. If one atom of B is missing from one of the face centred points, the formula of the compound is |
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Total number of tetrahedral and octahedral voids in 0.5 mol of a compound forming hcp structure are: |
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In AgBr, there can occur |
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If NaCl is doped with 10–4 mol % of SrCl2, the concentration of cation vacancies will be (NA= 6.02 × 1023 mol–1) |
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In an antifluorite structure, cations occupy |
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In Na2O having antifluorite structure |
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Which one of the following defects in the crystals lowers its density? |
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