Home
Class 12
CHEMISTRY
Pick out the incorrect statement:...

Pick out the incorrect statement:

A

`MnO_(4)^(2-)` is quite strongly oxidizing and stable only in very strong alkalies, In dilute alkali, neutral solutions, it disproportionates

B

In acidic solution, `MnO_(4)^(-)` is reduced to `Mn^(2+)` and thus, `KMnO_(4)` is widely used as oxidising agent

C

`KMnO_(4)` does not acts as oxidising agent in alkaline medium

D

`KmnO_(4)` is manufactured by the fusion of pyrolusite ore with `KOH` in presence of air or `KNO_(3)`, followed by electrolytic oxidation in alkaline solution

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • D AND F BLOCK ELEMENTS

    BANSAL|Exercise Exercise-2 (Paragraph Type)|18 Videos
  • D AND F BLOCK ELEMENTS

    BANSAL|Exercise EXERCISE-3 (Miscellaneous Exercise)|10 Videos
  • D AND F BLOCK ELEMENTS

    BANSAL|Exercise Exercise|3 Videos
  • CARBOXYLIC ACID DERIVATIVES

    BANSAL|Exercise Exercise 3|23 Videos
  • GENERAL ORGANIC CHEMISTRY

    BANSAL|Exercise Exercise 3|19 Videos

Similar Questions

Explore conceptually related problems

Pick out the correct statements

Pick out the correct statements

BANSAL-D AND F BLOCK ELEMENTS-Exercise-1 (Single Correct Choice Type)
  1. Pick out the incorrect statement:

    Text Solution

    |

  2. The metals present in insulin and haemoglobin are respectively:

    Text Solution

    |

  3. Metre scales are madeup of alloy:

    Text Solution

    |

  4. A metal M which is not affected by strong acids like conc. HNO(3),conc...

    Text Solution

    |

  5. underset(("Acidified"))(KMnO(4))+HCltoH(2)O+X(g),X is a:

    Text Solution

    |

  6. Amongst the following species, maximum covalent character is exhibited...

    Text Solution

    |

  7. Number of moles of K(2)Cr(2)O(7) can be reduced by 1 mole of Sn^(2+) i...

    Text Solution

    |

  8. Pick out the incorrect statement:

    Text Solution

    |

  9. The aqueous solution of CuCrO(4) is green because it contains:

    Text Solution

    |

  10. The aqueous solution of the following salts will be coloured in the ca...

    Text Solution

    |

  11. Rusting of iron in moist air involves-

    Text Solution

    |

  12. Transition metals normally have unfilled 'd' orbitals which are degene...

    Text Solution

    |

  13. Which one of the following transition metal ions is paramagnetic?

    Text Solution

    |

  14. E^(Theta) value for the couple Cr^(3+)//Cr^(2+) and Mn^(3+)//Mn^(2+) a...

    Text Solution

    |

  15. When ammonium dichloromate is heated it decompose and a spark is produ...

    Text Solution

    |

  16. A mixture of K(2)Cr(2)O(7) and conc. H(2)SO(4) forms

    Text Solution

    |

  17. When a photographic film is exposed and developed, the image is due to...

    Text Solution

    |

  18. When SO(2) is passed through acidified K(2)Cr(2)O(7) solution

    Text Solution

    |

  19. Which compound is deliquescent-

    Text Solution

    |

  20. Anelement which is highly toxic for plants and animals is-

    Text Solution

    |