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Solid A is a very hard electrical insula...

Solid `A` is a very hard electrical insulator in solid as well as in molten state and melts at extermely high temperature. What type of solid is it?

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Covalent or network solid like quarts `(SiO_2)`, SiC or C (diamond).
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Solid A is very hard electrical insulator in solid as well as in molten state and melts at an extremely high temperature. What type of solid is it?

Solids have properties like rigidity a definite shape and a define volume. If intermolecular forces are greater than thermal energy, substances exist as solid. Solids can be classified into two types. Crystalline solids and amorphous solids, Crystalline solids have regular arrangement of particles, definite geometric shapes, sharp melting points and definite heat of fusion. They are anisotropic and undergo clean cleavage. On the other hand, amorphous solid have no regular arrangement of particles, irregular shapes, melt over a range of temperature, no definite heat of fusion. They are isotropic and undergo irregular cleavage. Solid X is very hard, electrical insulator in solid as well as molten state and melts at extremely high temperature. Name the type of solid is it?

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MODERN PUBLICATION-SOLID STATE-NCERT FILE SOLVED (NCERT) (IN TEST QUESTIONS )
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  2. Classify the following solids in different categories based on the nat...

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

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

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

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  6. Give the significance of "lattice point."

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  7. Name the parameters that characterized a unit cell.

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

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

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

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

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

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

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

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

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

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

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  18. Ionic solids, which have anioninc vacancies due to metal excess defect...

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  19. A group-14 element is to be converted into n-type semiconductor by dop...

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