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Which of the following features are not ...

Which of the following features are not shown by quartz glass ?

A

This is a cyrstalline solid

B

Refractive index is same in all the directions

C

This has definite heat of fusion

D

This is also called super cooled liquid.

Text Solution

Verified by Experts

The correct Answer is:
A,C
Quartz glass is an amorphous solid so it has not definite heat of fusion. This is due to short range order of molecule while quartz glass is also known as super cooled liquid and isotropic in nature.
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NARAYNA-SOLID STATE-LEVEL-IV
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  4. Amorphous solids can also be callled ………….. .

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  5. Which of the following statements are correct?

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  6. Which of the following features are not shown by quartz glass ?

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  7. Which of the following cannot be regarded as molecular solid ?

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  8. In which of the following arrangements, Octahedral voids are forme...

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  9. Frenkel defect is also known as ……… .

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  10. Which of the following defects decrease the density ?

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  11. Match the defects given in Column I with the statements in given Colum...

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  12. Match the type of unit cell given in Column I with the features given ...

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  13. match the types of defect given in column I with the statement...

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  14. Match the items in column I with the items given in Column II. Colum...

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