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The sharp melting point of crystalline s...

The sharp melting point of crystalline solids is due to ……..

A

a regular arrangement of constituent particles observed over a short distance in the crystal lattice.

B

a regular arrangement of constituent particles observed over a long distance in the crystal lattice.

C

same arrangement of constituent particles in different directions

D

different arrangement of constituent particles in different directions

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The correct Answer is:
b
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A crystalline solid

A crystalline solid:

The sharp melting point of crystalline solids compared to amorphjous solids is due to

Solids have properties like rigidity a definite shape and a define volume. If intermolecular forces are greater than thermal energy, substances exist as solid. Solids can be classified into two types. Crystalline solids and amorphous solids, Crystalline solids have regular arrangement of particles, definite geometric shapes, sharp melting points and definite heat of fusion. They are anisotropic and undergo clean cleavage. On the other hand, amorphous solid have no regular arrangement of particles, irregular shapes, melt over a range of temperature, no definite heat of fusion. They are isotropic and undergo irregular cleavage. The melting point of crystalline solids is sharp due to:

Crystalline solid are

Crystalline solids have

Crystalline solids have :

PRADEEP-STATES OF MATTER: SOLID MATTER-NCERT EXEMPLAR PROBLEMS (MULTIPLE CHOICE- I)
  1. which of the following is true about the value of refractive in...

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  2. Which of the following statement is not true about amorphous solids?

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  3. The sharp melting point of crystalline solids is due to ……..

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  4. Iodine molecules are held in the crystal lattice by:

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  5. which of the following is a network solid?

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  6. which of the following solids is not an electrical conductor ? ...

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  7. which of the following is not the characteristic of ionic solids?

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  8. Graphite is a good conductor of electricity due to the presence of :

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  9. which of the following oxides behaves as conductor or insulator ...

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  10. Which of the following oxides shows electrical properties like metals?

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  11. The lattice site in a pure crystal cannot be occupied by :

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  12. Graphite cannot be classified as :

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  13. Cations are present in the interstitial sites in …………… .

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  14. Schottky defect is observed in crystals when ……………. .

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  15. which of the following is true about the change the charge acq...

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  16. To get a n- type semiconductor from silicon , it should be doped...

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  17. The total of tetrahedral voids in the face centred unit cell is ……...

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  18. Which of the following point defects are shown by AgBr (s) crys...

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  19. In which pair most efficient packing is present?

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  20. The percentage of empty space in a body centred cubic arrangement is :

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