Home
Class 12
CHEMISTRY
When KMnO(4) solution is added to hot ox...

When `KMnO_(4)` solution is added to hot oxalic acid solution, the decolourisation is slow in the beginning but becomes instantaneous after some time. This is because.

A

reaction is exothermic

B

`Mn^(2+)` acts as an autocatalyst

C

`CO_(2)` is formed as the product

D

`MnO_(4)^(-)` catalyses the reaction

Text Solution

Verified by Experts

The correct Answer is:
B
On adding `KMnO_(4)`solution to oxalic acid solution, the decolourisation is slow in the begninnig but because `Mn^(2+)` acts as a atocatalyst.
Promotional Banner

Topper's Solved these Questions

  • D - AND F-BLOCK ELEMENTS

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET Corner|27 Videos

  • D - AND F-BLOCK ELEMENTS

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise Practice exercise (Exercise 1)|78 Videos

  • COORDINATION COMPOUNDS

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET Corner|7 Videos

  • ELECTROCHEMISTRY

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET CORNER|32 Videos

Similar Questions

Explore conceptually related problems

When KMnO_(4) solution is added to hot oxalic acid solution the decoloursitation is slow in the beginning but becomes instantaneous after some time. This is because

When KMnO_(4) solution is added to oxalic acid solution , the decolourisation is slow in the beginning but becomes instantaneous after some time because

When KMnO_4 is added to oxalic acid, the decolourisation is slow in the beginning but becomes instantaneous after sometime because

Why is ester hydrolysis slow in the beginning and becomes faster after some time?

When hypo solution is added to KMnO_(4) solution then

MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-D - AND F-BLOCK ELEMENTS-Exercise 2 (Miscellaneous Problems)
  1. Consider the followinh reaction of permaganate ions. (I)10I^(-)+2Mn...

    Text Solution

    |

  2. Which of the following statement (s) is/are correct when a mixture of ...

    Text Solution

    |

  3. When KMnO(4) solution is added to hot oxalic acid solution, the decolo...

    Text Solution

    |

  4. What happen when a solution of potassium chromate is treated with an e...

    Text Solution

    |

  5. When SO(2) is passed through an acidified K(2)Kr(2)O(7) solution, the ...

    Text Solution

    |

  6. The catalytic of the transition metals and their compounds is describe...

    Text Solution

    |

  7. Select the correct order of oxidising power in acidic medium.

    Text Solution

    |

  8. Magnetic moment of maganese in (NH(4))(2) MnBr(2) is

    Text Solution

    |

  9. Pick out the correct statements from the following. (I) Cobalt (III...

    Text Solution

    |

  10. Which pair of compounds is expected to show similar colour in aqueous ...

    Text Solution

    |

  11. Match the following columns.

    Text Solution

    |

  12. Cr(2)O(7)^(2-)overset(pH=x)rarrCrO(4)^(2-)overset(pH=y)rarrCr(2)O(7)^(...

    Text Solution

    |

  13. Consider the following statements, A. Colour of a transition metal ...

    Text Solution

    |

  14. When a magnetic field is applied to substances, mainly two type of mag...

    Text Solution

    |

  15. Match the properties given in Column I with the metals given in Column...

    Text Solution

    |

  16. The ion Cr^(2+) is redusing agent while that of Mn^(3+) is an oxidisin...

    Text Solution

    |

  17. Which of the following statement (s) is /are correct? (I) CuS is wh...

    Text Solution

    |

  18. Cuprous ion is colourless, while cupric ion is colured because

    Text Solution

    |

  19. The oxidation number of Mn in the product of alkaline oxidative fusion...

    Text Solution

    |

  20. The 3d-metal ion are generally paramagnetic in nature because

    Text Solution

    |