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Which of the following statement is not ...

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

A

On heating they may become crystalline at certain temperature

B

They may become crystalline on keeping for long time

C

Amorphous solids can be moulded by heating

D

They are anisotropic in nature

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The correct Answer is:
d
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PRADEEP-STATES OF MATTER: SOLID MATTER-NCERT EXEMPLAR PROBLEMS (MULTIPLE CHOICE- I)
  1. Which of the following arrangements shows schematic alignment of magne...

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  2. which of the following is true about the value of refractive in...

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

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

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

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  6. which of the following is a network solid?

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

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

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

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

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

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

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  13. Graphite cannot be classified as :

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

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

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

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

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

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

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  20. In which pair most efficient packing is present?

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