Home
Class 12
CHEMISTRY
Peptization is the reverse of precipitat...

Peptization is the reverse of precipitation comment on the statement.

Text Solution

Verified by Experts

Ans: The process of conversion, of a precipitate into the colloidal state by shàking it with a-smalt .amount of a suitable electrolyte is called peptization, The phenomenon of precipitation of a colloidal solution by. the addition of suitable ckctrolytes is called coagulation or precipitation.
Promotional Banner

Topper's Solved these Questions

  • SOLUTIONS

    V PUBLICATION|Exercise QUESTION BANK|158 Videos

  • THE d- AND f- BLOCK ELEMENTS

    V PUBLICATION|Exercise QUESTION BANK|190 Videos

Similar Questions

Explore conceptually related problems

"Adsorption is a surface phnomenon" comment on this statement

Eventhough the first element in the periodic table is Hydrogen, it does not have a fixed position in the periodic table. Comment on this statement. Outline the similarities of hydrogen with the first group element as well as the Halogen family.

Carbonate ores are usually subjected to calcination, while sulphide ores are subjected to roasting. Comment on the statement.

The electron gain enthalpy values of halogens become more negative in the order: F gt C l gt B rgt I Comment on the statement.

Tadpole is ammonotelic while the frog is ureotelic. Comment on this statement.

NH_4Cl is a molecule containing three types of bonds. Comment on this statement and justify your answer.

Electrostatic force is medium dependent that is why NaCl dissolves in water comment on this statement.

V PUBLICATION-SURFACE CHEMISTRY-QUESTION BANK
  1. Classify the fóllowing as multimolectilar, macromolecular and associat...

    Text Solution

    |

  2. Can you purity a sol by filtering it through an ordinary fiter paper?

    Text Solution

    |

  3. Peptization is the reverse of precipitation comment on the statement.

    Text Solution

    |

  4. Explain what obsserved i.when a beam of light is passed through a co...

    Text Solution

    |

  5. Justify the use of gelatin as a protective colloid.

    Text Solution

    |

  6. Explain the term (a) Flocculation value (b) Gold number

    Text Solution

    |

  7. What is the basis of artificial rain?

    Text Solution

    |

  8. The nature of bonding forces in adsorption are

    Text Solution

    |

  9. Which is not applicable to chemisorption? Its heat of adsorption is h...

    Text Solution

    |

  10. An emulsion is a colloidal system of : 2 solids, 2 liquids, one gas...

    Text Solution

    |

  11. In the colloidal state the particle size ranges below 1mm, between 1...

    Text Solution

    |

  12. Which of the following is lyophobic colloid? (1)Gelatine (2)Sulphur ...

    Text Solution

    |

  13. Physical adsorption is essentially quite appreciable: at room temper...

    Text Solution

    |

  14. Fog is an example of colloidal system of : liquid dispersed in gas,...

    Text Solution

    |

  15. Smoke is colloidal solution of (1)Solid dispersed in liquid (2)Gas ...

    Text Solution

    |

  16. Which of the following is a hydrophilic colloidal sol? (1)Barium sulph...

    Text Solution

    |

  17. Alums purify muddy water by (1)Dialysis (2)Adsorption (3)Coagulation...

    Text Solution

    |

  18. The function of gum arabic in the preparation of Indian ink is (1)Coa...

    Text Solution

    |

  19. Gelatin is generally added to ice creams. Why?

    Text Solution

    |

  20. Which of the following characteristics is not correct for physical ads...

    Text Solution

    |