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Explain why the covalent solids are hard...

Explain why the covalent solids are hard.

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Explain why the covalent solids are bad conductors of electricity.

Explain why the covalent solids are usually soluble in non-polar solvents but are insoluble in polar solvents.

Explain why the covalent solids have high melting and boiling points.

Explain why ionic solids are quite hard and rigid.

Explain the following: Covalent solids are usually soft.

Explain why ionic solids are highly brittle.

Explain why ionic compounds are hard and brittle?

Explain why ionic solids are more soluble in polar solvents.

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ICSE-SOLID STATE-EXERCISE (PART-II DESCRIPTIVE QUESTIONS) (LONG ANSWER QUESTIONS)
  1. What are atomic solids ? Discuss the structures of diamond and graphit...

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  2. Explain why the covalent solids have high melting and boiling points.

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  3. Explain why the covalent solids are hard.

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  4. Explain why the covalent solids are bad conductors of electricity.

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  5. Explain why the covalent solids are usually soluble in non-polar solve...

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  6. How will you account for the following: Diamond is extremely hard an...

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  7. How will you account for the following: Diamond is a non-conductor o...

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  8. How will you account for the following: Diamond has high density.

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  9. How will you account for the following: Graphite is soft and is used...

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  10. How will you account for the following: Graphite is a good conductor...

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  11. Mention three differences between crystalline and amorphous solids.

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  12. For diamond, state the element present at the lattice sites, the numbe...

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  13. For sodium chloride crystal, state: the type of unit cell.

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  14. For sodium chloride crystal, state: the nature of forces holding the...

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  15. For sodium chloride crystal, state: the number of nearest neighbours...

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  16. For sodium chloride crystal, state: the geometry of the sodium ions ...

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  17. Graphite is anisotropic to electrical conduction. Discuss.

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  18. Diamond is hard and a bad conductor of electricity while graphite is s...

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  19. Describe the unit cell of sodium chloride with a neat diagram stating....

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  20. Describe the unit cell of sodium chloride with a neat diagram stating....

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