Home
Class 12
CHEMISTRY
50 ml of standard gold sol needs 0.05 mg...

50 ml of standard gold sol needs `0.05 mg ` of gelatine for its protection from coagulation - Calculate gold number of gelatine.

Promotional Banner

Topper's Solved these Questions

  • SOLVED PAPER 5

    SHARAM PUBLICATION|Exercise EXERCISE|46 Videos

Similar Questions

Explore conceptually related problems

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. What is the gold number of starch?

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

Fill in the blanks : The minimum milligrams of a protective colloid to be added to 10 ml of standard red gold sol, so that no coagulation takes place when 1 ml of 10% NaCl solution is added is called ………….

What happens to gold sol if gelatine is added to it ?

What happens when gelatin is mixed with gold sol?

Addition of 0.643 g of a compound to 50. mL of benzene .(density 0.879 g/mL lowers the freezing point from 5.51^0C to 5.03^0C. If K_(f) for benzene is 5.12 K kg mol^1 , calculate the molar mass of the compound.

An alpha particle enters into a unifrom magnetic field region of induction 10 Tesla with a velocity of (0.5 xx 10^7) m/sec at an angle fo 30^@ to the field. Calculate the force on the alpha partcle and compare with its weight. (use standard data).

SHARAM PUBLICATION-SURFACE CHEMISTRY-EXERCISE
  1. How does it become possible to cause artificial rain by spraying silve...

    Text Solution

    |

  2. The coagulation of 100 ml of a colloidal solution of gold is completel...

    Text Solution

    |

  3. 50 ml of standard gold sol needs 0.05 mg of gelatine for its protecti...

    Text Solution

    |

  4. Explain the cleansing action of soaps.

    Text Solution

    |

  5. Write the differences between true solution , colloidal solution and s...

    Text Solution

    |

  6. Distinguish between lyophilic and lyophobic colloids.

    Text Solution

    |

  7. Write a brief note on Coagulation.

    Text Solution

    |

  8. What are the dispersed phase and dispersion medium in the following co...

    Text Solution

    |

  9. What are the dispersed phase and dispersion medium in the following co...

    Text Solution

    |

  10. What are the dispersed phase and dispersion medium in the following co...

    Text Solution

    |

  11. What are the dispersed phase and dispersion medium in the following co...

    Text Solution

    |

  12. What are the dispersed phase and dispersion medium in the following co...

    Text Solution

    |

  13. Write the dispersed phase and dispersion medium in the followings : Wh...

    Text Solution

    |

  14. Write the dispersed phase and dispersion medium in the followings : Fo...

    Text Solution

    |

  15. Write the dispersed phase and dispersion medium in the followings : Ch...

    Text Solution

    |

  16. Write the dispersed phase and dispersion medium of the following collo...

    Text Solution

    |

  17. Write the dispersed phase and dispersion medium in the followings : Mu...

    Text Solution

    |

  18. Write the dispersed phase and dispersion medium in the followings : La...

    Text Solution

    |

  19. Why are hydrophobic colloids easily coagulated than the lyophilic coll...

    Text Solution

    |

  20. For coagulation of 50 ml of arsenious sulphide sol, 2.5 ml of 1 M NaCl...

    Text Solution

    |