Home
Class 12
CHEMISTRY
Gold number of a lyphilic sol is such pr...

Gold number of a lyphilic sol is such property that:

A

that larger its value, the greater is the peptising power

B

the lower its value, the greater is the peptising power

C

the lower its value, the greater is the protecting power

D

the larger its value, the greater is the protecting power

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • SURFACE CHEMISTRY

    GRB PUBLICATION|Exercise F. Emulsion, Micelle and Gel|8 Videos

  • SURFACE CHEMISTRY

    GRB PUBLICATION|Exercise REASONING TYPE|14 Videos

  • SURFACE CHEMISTRY

    GRB PUBLICATION|Exercise D. Purification and Preparation of Colloid|12 Videos

  • SOLID STATE

    GRB PUBLICATION|Exercise All Questions|267 Videos

Similar Questions

Explore conceptually related problems

Gold number of a lyophic sol is such a property that

Gold number of some lyophilic sols are : Which has maximum protective power :

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. On addition of one mL of sloution of 10 % NaCl to 10 mL. of red gold sol in presence of 0l.025 g of starch the coagultion is just prevented . the gold number of starch is

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. gold number given an indication of

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?

Gold number is maximum for the lyophilic sol is

In a colloidal state, the particle size of he dispersed phase ranges between 10^(3) to 10^(6) pm and the colloidal sol is of heterogeneous nature. Depending upon the ease with which these sols are formed, the colloidal sols are cassified as lyophilic and lyophobic. THe stability of a colloidal sol is due to the presence of charge on the sol particles and the neutralisation of the same is known as coagulation or precipitation. The coagulationg power of the active ions of he electrolytes can be compared with the help of Hardy-Schulze Law. The protecting power of the lyophilic sols can be compared with the help of gold number. Lesser the value of gold number, more will be the protecting power of the lyophilic sol. 0.025 g of starch sol is required to prevent the coagulatio of 10 mL of gold sol when 1 mL of 10% NaCl solution is present. The gold number of strach sol is :

GRB PUBLICATION-SURFACE CHEMISTRY-E. Coagulation, Protection and Application of Colloids
  1. Gold number of a lyphilic sol is such property that:

    Text Solution

    |

  2. Protective sols are:

    Text Solution

    |

  3. For the coagulation of 200mL of As(2)S(3) solution 10mL of 1 M NaCl is...

    Text Solution

    |

  4. Which of the following ions is most effective in the coagulation of an...

    Text Solution

    |

  5. Which of the following ions is most effective in the coagulation of fe...

    Text Solution

    |

  6. Coagulation value of the electrolytes AlCl(3) and NaCl for As(2)S(3) s...

    Text Solution

    |

  7. Which of the following anions will have minimum flocculation value for...

    Text Solution

    |

  8. Which is an example of coagulation?

    Text Solution

    |

  9. Gold number of some lyophilic sols are : {:((P),:,"Casein",:,0.01),(...

    Text Solution

    |

  10. A colloidal solution is subjected to an electrical field. The particle...

    Text Solution

    |

  11. Which of the following is most effective in coagulating a ferric hydro...

    Text Solution

    |

  12. Smoke has generally blue tinge. It is due to

    Text Solution

    |

  13. Gold number of haemoglobin is 0.03. Hence, 100 mL of gold sol will req...

    Text Solution

    |

  14. Arsenic (III) sulphide forms a sol with a negative charge. Which of th...

    Text Solution

    |

  15. Blood is purified by :

    Text Solution

    |

  16. Most effective ion to coagulate a negative sol is :

    Text Solution

    |

  17. Identify the statement which is correct w.r.t. surface phenomenon.

    Text Solution

    |

  18. Which of the following electrolytes is most effective in the coagulati...

    Text Solution

    |

  19. Which of the following is property of colloid?

    Text Solution

    |

  20. An arsenious sulphide sol carries a negative charge . The maximum prec...

    Text Solution

    |