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Classify the following as amorphous or c...

Classify the following as amorphous or crystalline solids : polyurethane , naphthalene , benzoic acid , teflon , potassium nitrate , cellophane , polyvinyl chloride , fibre glass , copper .

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Write the formulae of the following salts and classify them as families based on radicals. Potassium sulphate, sodium sulphate, calcium sulphate, magnesium sulphate, copper sulphate, sodium chloride, sodium nitrate, sodium carbonate and ammonium Chloride.

How do you count the following observations? a) Though alkaline potassium permanganate and acidic potassium permanganate both are used as oxidants, yet in the manufacture of benzoic acid from toluene we use alcoholic potassium permanganate as an oxidant. Why ? Write balanced redox equation for the reaction. b) When concentrated sulphuric acid is added to inorganic mixture containing chloride, we get colourless pungent smelling gas HCl, but if the mixture contains bromide then we get red vapour of bromine. Why ?

VIKRAM PUBLICATION ( ANDHRA PUBLICATION)-SOLID STATE-INTEXT QUESTIONS
  1. Why are solids rigid ?

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  2. Why do solids have a definite volume ?

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  3. Classify the following as amorphous or crystalline solids : polyuretha...

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  4. Why is glass considered a supercooled liquid ?

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  5. Refractive index of a solid is observed to have the same value along a...

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

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  7. Solid 'A' is a very hard electrical insulator in solid as well as in m...

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  8. Ionic solids conduct electricity in molten state but not in solid stat...

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  9. What type of solids are electrical conductors , malleable and ductile ...

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  10. Give the significance of a lattice point .

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  11. Name the parameters that characterise a unit cell .

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  12. Distinguish between hexagonal and monoclinic unit cells .

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  13. Distinguish between face-centred and end-centred unit cells .

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  14. Explain how much portion of an atom located at Corner ?

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  15. Explain how much portion of an atom located at body-centre of a cubi...

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

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  17. A compound forms hexagonal close-packed structure . What is the total ...

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  18. A compound is formed by two elements M and N . The element N forms ccp...

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  19. Which of the following lattices has the highest packing efficiency ? ...

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  20. An element with molar mass 2.7 xx 10^(-2) kg mol^(-1) forms a cubic un...

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