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Why is glass considered a supercooled li...

Why is glass considered a supercooled liquid?

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Glass is an amorphous solid. Like liqids, it has a tendency to flow, though very slowly. Morever, glass is obtained when molten silicates are allowed to cood rapidly. Therefore, glass is considered as a super cooled liquid.
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Assertion: Glass panes fixed to windows or doors of old buildings are slightly thicker at the bottom than at the top . Reason: Glass is a pseudo solid or supercooled liquid

MODERN PUBLICATION-SOLID STATE-NCERT FILE SOLVED (NCERT) (IN TEST QUESTIONS )
  1. Why do solids have a definite volume?

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  2. Classify the following as amorphous or crystalline solids: polyurethan...

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  3. Why is glass considered a supercooled liquid?

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  4. The refractive index of a solid is observed to have the same value alo...

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  5. Classify the following solids in different categories based on the nat...

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  6. Solid A is a very hard electrical insulator in solid as well as in mol...

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  7. Ionic solids conduct electricity in the molten state but not is the so...

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  8. What type of solids are electrical conductors, malleable or ductile?

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  9. Give the significance of "lattice point."

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  10. Name the parameters that characterized a unit cell.

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  11. Distinguish between a. Hexagonal and monoclinic unit cells (b) Fac...

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  12. Explain how much portin of an atom located at (a) corner and (b) body ...

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  13. What is the two-dimensional coordination number of a molecule in squar...

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  14. A compound is formed hexagonal close-packed structure. What is the tot...

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  15. A comound is formed by two elements M and N. The element N froms ccp a...

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  16. Which of the following lattices has the highest packing efficency (a) ...

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  17. An element with molar mass 2.7xx10^(-2) kg per mole forms a cubic uni...

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  18. What type of defect can arise when a solid is heated? Which physica...

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  19. What type of stoichiometric defect is shown by: (a) ZnS (b) AgBr

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  20. Explain how vacancies are introduced in an ionic solid when a cation ...

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