Home
Class 12
CHEMISTRY
the protective power of the lyophilic co...

the protective power of the lyophilic colloids es expressed in terms of gold number, a term introduced by Zsigmondy. Gold number is the number of milli - gram of the protective colloid which prevent the coagulation of 10 mLof red gold sol , when 1 mL of a 10 per cent solution of sodium chloride is added to it . thus smaller the gold number of lyophillic colloid, the greater is the protective power.
which of the following statement (S) is / are correct? higher the gold number, more protective power of colloid, Lower the gold number, more protective power, Higher the coagulation value, more the coagulation power, lower the coagulation value, higher the coagulation power.

Promotional Banner

Topper's Solved these Questions

  • SURFACE CHEMISTRY

    MODERN PUBLICATION|Exercise EXERCISE|411 Videos
  • STRUCTURE OF ATOM

    MODERN PUBLICATION|Exercise EXERCISE|102 Videos

Similar Questions

Explore conceptually related problems

the protective power of the lyophilic colloids es expressed in terms of gold number, a term introduced by Zsigmondy. Gold number is the number of mili - gram of the protective colloid which prevent the coagulation of 10 mL of red gold sol , when 1 mL of a 10 per cent solution of sodium chloride is added to it . thus smaller the gold number of lyophillic colloid, the greater is the protective power. gold number given an indication of : protective nature of colloids, purity of gold in suspension, the charge on a colloidal solution of gold, gram of gold per litre of solution.

the protective power of the lyophilic colloids is expressed in terms of gold number, a term introduced by Zsigmondy. Gold number is the number of milli - gram of the protective colloid which prevent the coagulation of 10 mLof red gold sol , when 1 mL of a 10 per cent solution of sodium chloride is added to it . thus smaller the gold number of lyophillic colloid, the greater is the protective power. On addition of one mL of sloution of 10 % NaCl to 10 mL. of red gold sol in presence of 0.025 g of starch the coagultion is just prevented . the gold number of starch is : 0.025, 0.25, 2.5, 25.

What are protective colloids ?

What are lyophilic colloids?

Which of the following is a lyophillic colloid ?

Which of the following terms is not related with colloids?

The protective power of colloids is measured in the unit ................. .

What is Gold number?

Gold number is associated with

What do you mean by gold number ?

MODERN PUBLICATION-SURFACE CHEMISTRY-EXERCISE
  1. True or False : Al(NO3)3 has higher coagulating power than MgSO4 for F...

    Text Solution

    |

  2. True or False : Gel is a system in which liquid is the dispersed phase...

    Text Solution

    |

  3. the protective power of the lyophilic colloids es expressed in terms o...

    Text Solution

    |

  4. True or False : Greater the flocculation value of an electrolyte, grea...

    Text Solution

    |

  5. True or False : Adsorption is always multimolecular.

    Text Solution

    |

  6. True or False : Colloidal sols are always heterogeneous.

    Text Solution

    |

  7. Complete the missing links : Milk is an example of............. in ......

    Text Solution

    |

  8. The phenomenon in which adsorption and absorption takes place simultan...

    Text Solution

    |

  9. The nature of forces involved in physical adsorption are ................

    Text Solution

    |

  10. The formation of micelles takes place above a particular temperature c...

    Text Solution

    |

  11. The movement of colloidal particles under the influence of an electric...

    Text Solution

    |

  12. The scattering of light by colloidal particles is called ........... .

    Text Solution

    |

  13. The swelling of gel in water is called ............. .

    Text Solution

    |

  14. ............. is the process of Separating the crystalloids from collo...

    Text Solution

    |

  15. Colloidal solution of gold in water is called ............... .

    Text Solution

    |

  16. In whipped cream, the dispersion medium is................ and dispers...

    Text Solution

    |

  17. In benzosol, the dispersion medium is ........... .

    Text Solution

    |

  18. The size of particles of colloidal solution is in the range of ..........

    Text Solution

    |

  19. A graph between the amount of gas adsorbed per gram of the absorbent a...

    Text Solution

    |

  20. The rate of adsorption in general is ............. in the beginning an...

    Text Solution

    |