Home
Class 12
CHEMISTRY
What is the action of heat on K2Cr2O7 an...

What is the action of heat on `K_2Cr_2O_7` and
`KMnO_4`?

Text Solution

Verified by Experts

Action of heat on `K_2Cr_2O_7`: It decomposes with the evolution of oxygen as follows:
`4K_2Cr_2O_7 overset("heat")(to) 4K_2CrO_4 + 2Cr_2O_3 + 3O_2`
Promotional Banner

Topper's Solved these Questions

  • THE D- AND F-BLOCK ELEMENTS

    OMEGA PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS|41 Videos

  • SURFACE CHEMISTRY

    OMEGA PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS|78 Videos

  • THE P-BLOCK ELEMENTS

    OMEGA PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS|51 Videos

Similar Questions

Explore conceptually related problems

What is action of heat on KMnO_4 ?

Write the reaction of SO_2 with K_2 Cr_2 O_7

What happens when aniline reacts with K_2Cr_2O_7 and H_2SO_4 .

A mixture of NaHC_2O_4 and KHC_2O_4.H_2C_2O_4 required equal volumes 0.2N KMnO_4 and 0.12 N NaOH separately. What is the molar ratio of NaHC_2O_4 and KHC_2O_4.H_2C_2O_4 in the mixture ?

What is the oxidation state of Cr in K_(2)Cr0_(3)

Explain how the colour of a solution of K_2Cr_2O_7 depends on the pH of the solution ?

The hybridisation of Cr in Cr_2O_7^(2-) ion is

What happens when: K_2Cr_2O_7 is heated ?

What happens when acidified K_2Cr_2O_7 reacts with KI ?

OMEGA PUBLICATION-THE D- AND F-BLOCK ELEMENTS-MULTIPLE CHOICE QUESTIONS
  1. What is the action of heat on K2Cr2O7 and KMnO4?

    Text Solution

    |

  2. Which element belongs to d-block elements ?

    Text Solution

    |

  3. The transition elements have a general electronic configuration of

    Text Solution

    |

  4. The correct ground state electronic configuration of chromium atom (Z...

    Text Solution

    |

  5. Which of the following electronic configuration is that of a transiti...

    Text Solution

    |

  6. Which of the following elements is alloyed with copper to form brass?

    Text Solution

    |

  7. Copper can be extracted from

    Text Solution

    |

  8. Argentite is an ore of

    Text Solution

    |

  9. The process used for the extraction of gold is

    Text Solution

    |

  10. Important ore of zinc is

    Text Solution

    |

  11. The inner transition elements are the elements in which the added elec...

    Text Solution

    |

  12. Transition elements

    Text Solution

    |

  13. The tendency of the transition elements to form coloured compounds is...

    Text Solution

    |

  14. Which of the following is diamagnetic ?

    Text Solution

    |

  15. The common oxidation state of the elements of lanthanide series is

    Text Solution

    |

  16. Which of the following is a lanthanide ?

    Text Solution

    |

  17. For the process Cu(g) to Cu^+ (g) + e^- , the electron is to be...

    Text Solution

    |

  18. Paramagnetism is a property of

    Text Solution

    |

  19. The first ionisation energy of silicon is lower than that of

    Text Solution

    |

  20. Which of the following electronic configurations will have the lowest...

    Text Solution

    |

  21. In general, the melting and boiling point of transition metals

    Text Solution

    |