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Question 1 of 10
1. Question
Lithium has a bcc structure. Its density is 530 kg m–3 and its atomic mass is 6.94 g mol–1. Calculate the edge length of a unit cell of Lithium metal (NA = 6.02 × 1023 mol–1)
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Question 2 of 10
2. Question
The ionic radii of A+ and B– ions are 0.98 ×10–10 m and 1.81 × 10–10 m. The coordination number of each ion in AB is
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Question 3 of 10
3. Question
Which among the following solids crystalises as a face centred cube?
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Question 4 of 10
4. Question
Volume occupied by single CsCl ion pair in a crystal is 7.014 × 10–23 cm3. The smallest Cs – Cs internuclear distance is equal to length of the side of the cube corresponding to volume of one CsCl ion pair. The smallest Cs to Cs internuclear distance is nearly
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Question 5 of 10
5. Question
A crystalline solid XY3 has ccp arrangement for its element Y. X occupies
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Question 6 of 10
6. Question
The number of octahedral void(s) per atom present in a cubic close-packed structure is
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Question 7 of 10
7. Question
A metal crystallizes with a face-centered cubic lattice. The edge of the unit cell is 408 pm. The diameter of the metal atom is
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Question 8 of 10
8. Question
AB crystallizes in a body centred cubic lattice with edge length ‘a’ equal to 387 pm. The distance between two oppositively charged ions in the lattice is
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Question 9 of 10
9. Question
If NaCl is doped with 10–4 mol % of Sr Cl2, the concentration of cation vacancies will be (NA = 6.02 × 1023 mol–1)
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Question 10 of 10
10. Question
A compound formed by elements X and Y crystallizes in a cubic structure in which atoms X are at the corners of the cube and atoms Y are at the face-centers. The formula of the compound is
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