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(A): Glass possess sharp melting point. ...

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

A

Both (A) and (R) are true and (R) is the correct explanation of (A)

B

Both (A) and (R) are true and (R) is not the correct explanation of (A)

C

(A) is true but (R) is false

D

(A) is false but (R ) is true

Text Solution

Verified by Experts

The correct Answer is:
D
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AAKASH SERIES-SOLID STATE-LEVEL - I (EXERCISE - I)
  1. Which of the following is not a crystalline solid?

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  2. Covalent solid among the following is

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

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  4. Among solids, the highest melting point is exhibited by

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  5. Which of the following is not a correct statement ?

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  6. {:("Column A","Column B"),("A) Glass","1) Framework silica"),("B) Quar...

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  7. Which is not correct about valence bond theory of metals

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

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

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  10. The structural unit of a crystal is called

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  11. The ratio of 'd' values in NaCl crystal is

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

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

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

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

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

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  17. How many kinds of primitive unit cells are possible

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

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

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

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