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Ionic solids are characterised by:...

Ionic solids are characterised by:

A

low melting point

B

low melting point

C

good conductor of electricity in solid state

D

soluble in polar solvent

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USHA PUBLICATION-SOLID STATE-EXERCISE
  1. Which of the following is an example of covalent solid ?

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  2. Crystals which are good conductor of heat and electricity are -

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  3. Ionic solids are characterised by:

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  4. Which of the following is amorphous ?

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  5. Explain, how much portion of an atom located at (i) corner and (ii) bo...

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  6. Close packing is maximum in the crystal which is -

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  7. What do you mean by packing efficiency ? In which type of crystal arra...

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  8. What is co-ordination number ?

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  9. Schottky defect is generally appears in -

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  10. n-type semiconductor can be obtained by adding - to pure germanium .

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  11. n-type semiconductor can be obtained by adding - to pure germanium .

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  12. In the cubic arrangement the radius ratio is found to be 0.884. The st...

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  13. Radius ratio of NaCl crystal is 0.532. The structure of the crystal is...

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  14. Number of particles present per unit cell of HCP crystal is .

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  15. Iodine is an example of type of solid.

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  16. The point defect which decreases the density of a solid is called as ...

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  17. Give an example of hcp and bcc crystals.

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  18. The total number of atoms per unit cell of a face centred cubic crysta...

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  19. Which non-stoichiometric point defect is responsible for colour in alk...

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  20. Explain the following with suitable examples: n-type semiconductor

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