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Minutes
59
Questions
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Marking Scheme
Q1. Chottky defect defines imperfection in the lattice structure of
Q2. An type structure is found in
Q3. An element (atomic mass ) having structure has unit cell edge . The density of element is (No. of atoms in , )
Q4. What is the coordination number of sodium in ?
Q5. The compound, found in nature in gas phase but ionic in solid state is
Q6. The and are located in crystal, respectively at face centred cubic lattice points and in
Q7. The coordination number in is
Q8. The space lattice of graphite is
Q9. Coordination numbers of and in the crystal structure of wurtzite are
Q10. Gold has a face centred cubic lattice with an edge length of the unit cube of . Assuming the closest packing, the diameter of the gold atom is
...and 49 more questions.