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(A): Crystalline solids are anisotropic ...

(A): Crystalline solids are anisotropic
(R): Crystalline solids are not as closely packed as amorphous solids.

A

Both A & R are true, R is the correct explanation of A

B

Both A & R are true, R is not correct explanation of A

C

A is true, R is false

D

A is false, R is true Close packed structures and voids

Text Solution

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The correct Answer is:
C
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AAKASH SERIES-SOLIDS STATE-OBJECTIVE EXERCISE - 1 (TYPES OF SOLIDS OF CRYSTAL STRUCTURES)
  1. (A) : Crystalline solids have sharp and chara cteric melting points. ...

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  2. The maximum displacement perpendicular to the motion of the wave is kn...

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  3. By passing X-rays through copper sulphate crystals diffraction band is...

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  4. The structural unit of a crystal is called

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  5. (A): Glass possess sharp melting point. (R) : Glass is a pseudo soli...

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  6. The angle corresponding to maximum diffra ction of x-rays on solid cry...

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  7. Number of space lattices presnt in triclinic System

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  8. Graphically the total number of fundamental spatial arrangements possi...

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  9. In case of a cubic system, the number of types of space lattices

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  10. The number of points at the centre of the primitive unit cell is

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  11. How many kinds of primitive unit cells are possible

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  12. {:("(Unitcell)","(no of atoms per unitcell)"),("A) Simple cube","1) 4"...

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  13. The number of space lattices possible for the crystalographic dimensio...

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  14. In which of the following crystal systems F.C.C unit cells exists ?

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  15. Out of seven crystal systems how many have body centred unit cell ?

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  16. How many unit cells are possible for the crystallographic dimensions a...

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  17. Which of the following systems is not correctly characterised ?

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  18. Axial distances are a = bne c and axial angles are a = 90^(0) = beta, ...

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  19. Total number of Bravais lattices is

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  20. (A): Crystalline solids are anisotropic (R): Crystalline solids are ...

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