Home
Class 12
CHEMISTRY
Particles of Fe(OH)(3), sol produced in ...

Particles of `Fe(OH)_(3)`, sol produced in the hydrolysis of `FeCl_(3)`, are positively charged but the particles of `As_(2)S_(3)` sol obtained in the reaction of `As_(2)S_(3)`, with `H_(2)S` are negatively charged. Explain.

Promotional Banner

Topper's Solved these Questions

  • SURFACE CHEMISTRY

    CHHAYA PUBLICATION|Exercise Question-Answer Zone for Board Examination|29 Videos

  • SURFACE CHEMISTRY

    CHHAYA PUBLICATION|Exercise SOLVED WBCHSE SCANNER|15 Videos

  • SURFACE CHEMISTRY

    CHHAYA PUBLICATION|Exercise Practice set 5|13 Videos

  • SOME p-BLOCK ELEMENTS

    CHHAYA PUBLICATION|Exercise PRACTIVE SET 11|15 Videos

Similar Questions

Explore conceptually related problems

For the reaction : SO_(2)+2H_(2)Sto3S+2H_(2)O -

Why is Fe(OH)_(3) colloid positively charged, when prepared by adding FeCl_(3) to hot water?

The effective coagulating agent of Sb_(2)S_(3) sol is -

Addition of an excess solution of AgNO_(3) , to a solution of KI gives a positively charged Agl sol, while addition of an excess solution of KI to a solution of AgNO_(3) , results is a negatively charged Agl sol. Explain with reasons.

In acidic medium , particles of the sol formed by SnO_(2) are positively charged. But in alkaline medium, particles of the sol carry a negative charge-Explain.

Addition of excess AgNO_(3) to NaCl solution gives positively charged AgCl sol, while AgNO_(3) solution on treating with excess of NaCl solution yields negatively charged AgCl sol. Explain with reason.

In the coagulation of As_(2) S_(3) sol, AlCl_(3) is more effective than NaCl. But in case of Fe(OH)_(3) sol, Na_(2)SO_(4) is more effective than NaCl. Explain.

How would you understand that the AS_2S_3 sols particles are negetively charged?

Write the chemical method by which Fe(OH)_(3) sol is prepared from FeCl_(3) .

Between BaCl_(2) or KCl which one is more effective for the coagulation of a negatively charged sol?

CHHAYA PUBLICATION-SURFACE CHEMISTRY-WARM UP EXERCISE
  1. Define the Electro-osmosis .

    Text Solution

    |

  2. Give an example each of an sol exhibiting cataphoresis and anaphoresis...

    Text Solution

    |

  3. What do you mean by isoelectric point of colloid ? Mention one importa...

    Text Solution

    |

  4. Why is a medicine in colloidal state found to be very effective ?

    Text Solution

    |

  5. Addition of an excess solution of AgNO(3), to a solution of KI gives a...

    Text Solution

    |

  6. Particles of Fe(OH)(3), sol produced in the hydrolysis of FeCl(3), are...

    Text Solution

    |

  7. Why are lyophilic sols more stable than lyophobic sols?

    Text Solution

    |

  8. What are protective colloids? Give an example.

    Text Solution

    |

  9. Less the gold number of a lyophilic colloid, more is its protective po...

    Text Solution

    |

  10. What do you mean by coagulation of a colloid? Write the Hardy-Schulze ...

    Text Solution

    |

  11. Na(2)SO(4) is more effective than NaCl in the coagulation of Fe(OH)(3)...

    Text Solution

    |

  12. Which of the following is required in least amount for the coagulation...

    Text Solution

    |

  13. On applying alum to cuts and wounds, bleeding stops. Explain.

    Text Solution

    |

  14. Why is delta formed at the confluence of the river with sea ?

    Text Solution

    |

  15. Why does the colour of sky appear blue ?

    Text Solution

    |

  16. What makes nanomaterial so special ?

    Text Solution

    |

  17. State three applications of nanoparticle ?

    Text Solution

    |

  18. What are the dimensions of the Nanotubes .

    Text Solution

    |

  19. What are the dimensions of the Quantum dots

    Text Solution

    |

  20. What are the dimensions of the Nanofilms.

    Text Solution

    |