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The most unsymmetrical and symmetrical s...

The most unsymmetrical and symmetrical systems are, respectively :

A

tetragonal , cubic

B

triclinic, cubic

C

rhombohedral, hexagonal

D

orthorhombic , cubic

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The correct Answer is:
B
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MODERN PUBLICATION-SOLID STATE-COMPETITION FILE - OBJECTIVE TYPE QUESTIONS (A. MULTIPLE CHOICE QUESTIONS)
  1. The most unsymmetrical and symmetrical systems are, respectively :

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  2. The packing fraction for a body-centred cube is

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  3. The number of atoms in bcc and fcc arrangement are respectively :

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  4. What is the coordination number of hcp and ccp?

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  5. The portion of edge length not occupied by atoms for simple cubic, fcc...

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  6. The volume of atom present in a face-centred cubic unit cell of a meta...

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  7. A metal crystallizes in bcc lattice. The percent fraction of edge leng...

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  8. How many unit cell are present in a cubic-shaped ideal crystal of NaCl...

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  9. For tetrahedral co-ordination the radius ratio (r^(+) //r^(-))should b...

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  10. The number of second nearest Na^(+) ions neighbour of a Na^(+) ion in ...

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  11. The cubic unit cell of Al (molar mass 27 g "mol"^(-1) ) has an edge le...

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  12. In magnetite , O^(2-) have ccp arrangement with Fe^(2+) ions in 1//8^(...

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  13. An alloy of Cu, Ag and Au is found to have copper constituting the c.c...

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  14. In spinel structure, O^(2-) ions are cubic-closed packed, wherease 1/8...

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  15. A crystalline solid has a cubic structure in which tungsten (W) atoms ...

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  16. A mineral of titanium (perovskite) is found to contain calcium ions at...

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  17. The number of terrahedral and octahedral holes in a hexagonal primitiv...

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  18. In which of the following structures, the anion has maximum coordinati...

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  19. In a fcc arrangement of P and Q atoms, where P atoms are at the corner...

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  20. The pyknometric density of sodium chloride crystal is 2.165xx10^(3)kg ...

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