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Explain why graphite is soft and can be ...

Explain why graphite is soft and can be used as a lubricant.

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ICSE-SOLID STATE-ISC EXAMINATION QUESTIONS PART-I (Descriptive Question)
  1. For diamond, state the element present at the lattice sites, the numbe...

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  2. In a body-centred and face-centred arrangement of atoms of an element,...

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  3. Explain why graphite is soft and can be used as a lubricant.

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  4. Compare the crystals of copper and diamond giving one similarity and o...

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  5. Define piezoelectricity and give one use of piezoelectric crystals.

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  6. What are semiconductors ? What is the effect of increasing temperature...

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  7. For a crystal of diamond, state : The hybridization of the carbon at...

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  8. For a crystal of diamond, state : The coordination number of each ca...

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  9. For a crystal of diamond, state : The type of lattice in which it cr...

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  10. For a crystal of diamond, state : The number of carbon atoms present...

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  11. What is Schottky defect in a solid ?

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  12. An ionic compound is made up of A cations and B anions. if A cations a...

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  13. Define Frenkel defect in solid crystal.

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  14. Explain giving reasons why ionic solids conduct electricity in molten ...

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  15. For a crystal of diamond, state : The number of carbon atoms present...

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  16. For a crystal of diamond, state : The type of lattice in which it cr...

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  17. In a crystal of diamond : How many carbon atoms surround each carbon...

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  18. For a crystal of diamond, state : The type of lattice in which it cr...

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  19. Describe briefly the structure of copper metal.

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  20. Why sodium chloride on heating with sodium vapours acquires yellow col...

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