Home
Class 12
CHEMISTRY
Gold number of haemoglobin is 0.03. Henc...

Gold number of haemoglobin is 0.03. Hence, 100 mL of gold sol will require how many mg haemoglobin so that gold is not coagulated by 1 mL of `10%` NaCl solution?

A

`0.03 mg`

B

30 mg

C

`0.30 mg`

D

3 mg

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 haemoglobin is 0.03. Hence 100 ml of gold sol will require haemoglobin so that gold is not coagulated by 10 ml of 10% NaCl solution

Which of the following can protect a gold sol from coagulation by NaCl solution?

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 :

Gold number of starch is 25. How much of it is required to prevent coagulation of 100 ml of gold sol adding 1 ml of 10% NaCl solution?

The gold number of gelatin is 0.01 . Calculate the amount of gelatin to be added to 1000mL of a colloidal sol of gold to prevent its coagulation, before adding 1mL of 10%NaCl solution.

How many ml of 1 (M) H_(2)SO_(4) is required neutralise 10 ml of 1 (M) NaOH solution?

How many Na^+ ions are present in 100 mL of 0.25 M of NaCl solution ?

GRB PUBLICATION-SURFACE CHEMISTRY-E. Coagulation, Protection and Application of Colloids
  1. Which of the following is most effective in coagulating a ferric hydro...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  5. Blood is purified by :

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  9. Which of the following is property of colloid?

    Text Solution

    |

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

    Text Solution

    |

  11. Tyndall effect is shown by

    Text Solution

    |

  12. According to Hardy Schulze rule, the power of coagulation of an ion de...

    Text Solution

    |

  13. Among the electrolytes Na(2),SO(4),CaCl(2),Al(2)(SO(4))(3) and NH(4)Cl...

    Text Solution

    |

  14. The dispersed phase in colloidal iron (III) hydroxide and collodial go...

    Text Solution

    |

  15. Gold numbers of protective colloids A,B,C and D are 0.5,0.01,0.10 and ...

    Text Solution

    |

  16. On passing light from colloidal solution, the effect due to scattering...

    Text Solution

    |

  17. The solution in which the light is scattered by the particles is :

    Text Solution

    |

  18. The charge on As(2)S(3) sol is due to the adsorbed :

    Text Solution

    |

  19. Sky looks blue due to

    Text Solution

    |

  20. Gold number is minimum in case of……………

    Text Solution

    |