Home
Class 12
CHEMISTRY
Classify the following as amorphous or c...

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

Text Solution

Verified by Experts

Amorphous solids : Polyurethane, naphthalene, teflon, cellophane, polyvinyl chloride, fibre glass.
Crystalline solids : Benzoic acid, potassium nitrate, copper.
Promotional Banner

Topper's Solved these Questions

  • SOLID STATE

    DINESH PUBLICATION|Exercise N.C.E.R.T.|16 Videos

  • SOLID STATE

    DINESH PUBLICATION|Exercise QUESTION FROM BOARD EXAMINATION|80 Videos

  • SOLID STATE

    DINESH PUBLICATION|Exercise Brain storming|10 Videos

  • REDOX REACTIONS

    DINESH PUBLICATION|Exercise Ultimate Preparation|9 Videos

  • SOLUTIONS

    DINESH PUBLICATION|Exercise ULTIMATE PREPARATORY PACKAGE|10 Videos

Similar Questions

Explore conceptually related problems

Classify the following solids into amorphous or crystalline solids. Bakelite, Platinum , Camphor , Oxalic acid , Melamine formaldehyde, Alum , Neoprene, Sugar , Solid CO_2 , Polythene.

How do you count for 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 a balanced redox equation for the reaction. (b) When concentrated sulphuric acid is added to an 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 ?

DINESH PUBLICATION-SOLID STATE-N.C.E.R.T
  1. Why are solids rigid ?

    Text Solution

    |

  2. Why do solids have a definite volume?

    Text Solution

    |

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

    Text Solution

    |

  4. Why is glass considered a supercooled liquid?

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  7. A solid substance 'A' is very hard and electrical insulator both in th...

    Text Solution

    |

  8. Why are ionic solids conducting in the molten state and not in the sol...

    Text Solution

    |

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

    Text Solution

    |

  10. Give the significance of "lattice point."

    Text Solution

    |

  11. Name the parameters that characterized a unit cell.

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  16. A compound formed by two elements M and N. Element N forms ccp and ato...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |