Home
Class 12
CHEMISTRY
On addition of 1 mL solution of 10% NaCl...

On addition of 1 mL solution of 10% NaCl to 10 mL gold sol in the presence of 0.0250 g of starch, the coagulation is just prevented. Starch has the gold number :

A

`0.025 `

B

`0.025`

C

2.5

D

25

Text Solution

Verified by Experts

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

On adding one mL of solution of 10% NaCl to 100 mL of gold sol in the presence of 0.25 g of starch, the coagulation is Just prevented. The gold number of starch is

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.

50 mL of standard gold sol. needs 0.05 mg of gelatin for its protection from coagulation. Calculate gold number of gelatin.

The coagulation of 100 mL of a colloidal solution of gold is completely prevented by the addition of 0.25 g of starch to it before adding 1 mL of 10% NaCl solution . Calculate the gold number of starch.

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 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.

Fluoxymesterone, C_10 H_29 FO_3, is an anabolic steroid. A 500 mL solution is prepared by dissolving 10.0 mg of the steoid in water. 10.0 mL portion of this solution is diluted to a final volume of 1.00 L . what is the resulting molarity ?

100mL of 10% NaOH(w/V) is added to 100 mL of 10% HCI(w/V) . The nature of resultant solution is :

An aqueous solution of ethanol has density 1.025 g/mL and it is 2 M. What is the molality of this solution ?

select the false statement (S) : Brownian motion and Tyndall effect are shown by true solutions, sorption process is combinations of adsorption and absorption process, Law Hardy schulze is related with coagulation of a sol, Higher is the gold number greater will be the protective power of a colloid.

MODERN PUBLICATION-SURFACE CHEMISTRY-EXERCISE
  1. Which of the following electrolytes will be most effective in causing ...

    Text Solution

    |

  2. Soaps essentially form a colloidal solution in water and remove the gr...

    Text Solution

    |

  3. On addition of 1 mL solution of 10% NaCl to 10 mL gold sol in the pres...

    Text Solution

    |

  4. Which of the following is an example of associated colloid ?

    Text Solution

    |

  5. Alums purifty muddy water by:

    Text Solution

    |

  6. What are the composition of Durelumine?

    Text Solution

    |

  7. What is the composition of Hydroleum metal alloy?

    Text Solution

    |

  8. When KI is added to silver nitrate solution, the sol formed may be wri...

    Text Solution

    |

  9. Which of the following reaction gives a colloidal sol ?

    Text Solution

    |

  10. For adsorption of a gas on a solid, the plot of log x/m vs log P is li...

    Text Solution

    |

  11. Blue colour of water in sea is due to

    Text Solution

    |

  12. Which of the following is not correct regarding the adsorption of a ga...

    Text Solution

    |

  13. Alum helps in purifying water by

    Text Solution

    |

  14. According to adsorption theory of catalysis, the speed of the reaction...

    Text Solution

    |

  15. Which of the following characteristic is not correct for physical adso...

    Text Solution

    |

  16. Rate of physisorption increases with

    Text Solution

    |

  17. The coagulating power of an electrolyte for arsenious sulphide sol dec...

    Text Solution

    |

  18. The volumes of gases H2, CH4 ,CO2 and NH3 adsorbed by 1 gm of activate...

    Text Solution

    |

  19. The disease kala azar is cured by ?

    Text Solution

    |

  20. Which of the following statements about zeolites is false ?

    Text Solution

    |