Home
Class 12
CHEMISTRY
When KMnO(4) is reduced with oxalic acid...

When `KMnO_(4)` is reduced with oxalic acid in acidic solution, the oxidation number of Mn changes from

A

`+7 ` to `+2`

B

`+7` to `+4`

C

`+7` to `+6`

D

`+6` to `+2`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • REDOX REACTIONS

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (Section B) (Objective type Questions (one option is correct))|32 Videos

  • REDOX REACTIONS

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (Section C) (Objective type Questions (More than one option is correct))|18 Videos

  • REDOX REACTIONS

    AAKASH INSTITUTE ENGLISH|Exercise Try Yourself|28 Videos

  • PRINCIPLES OF QUALITATIVE ANALYSIS

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (SECTION H)|9 Videos

  • SOLUTIONS

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGMENT (SECTION-J) AAKASH CHALLENGERS QUESTIONS|10 Videos

Similar Questions

Explore conceptually related problems

When KMnO_(4) reacts with KBr in acidic medium then oxidation state of Mn changes from +7 to :-

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

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.

Calculate the oxidation number of Mn in KMnO_(4) molecule.

When MnO_2 is strongly heated to get oxygen gas, the oxidation number of Mn changes from + 4 to ?

In acidic solution, KMnO_(4) is reduced to

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 H_(2)S is passed through nitric acid and acidified KMnO_(4) solution the product formed is

Explain why does colour of KMnO_(4) disappear when oxalic acid is added to its solution in acidic medium?

AAKASH INSTITUTE ENGLISH-REDOX REACTIONS-Assignment (Section A) (Objective type Questions (one option is correct))
  1. In this reaction 2Na(2)S(2)O(3)+I(2) to Na(2)SO(4)O(6)+2NaI(2) ,NaI(2)...

    Text Solution

    |

  2. The oxidation number of nitrogen in NH(2)OH is :

    Text Solution

    |

  3. When KMnO(4) is reduced with oxalic acid in acidic solution, the oxida...

    Text Solution

    |

  4. In which of the following reactions the underlined substance is oxidis...

    Text Solution

    |

  5. The oxidation state of phosphorus vary from

    Text Solution

    |

  6. In which of the following reactions, the underlined element has decrea...

    Text Solution

    |

  7. A metal ion M^(3+) loses three electrons , its oxidation number will b...

    Text Solution

    |

  8. In which one of the following changes there are transfer of five elect...

    Text Solution

    |

  9. The oxidation states of the most electronegative elements in the produ...

    Text Solution

    |

  10. The oxidation number of chlorine in HOCl is

    Text Solution

    |

  11. In the reaction :Cl(2)+OH^(-)rarrCl^(-)+ClO(4)^(-)+H(2)O

    Text Solution

    |

  12. The oxidation number of P in Mg(2)P(2)O(7) is

    Text Solution

    |

  13. For the redox recation MnO(4)^(-)+C(2)O(4)^(2-)+H^(+)toMn^(2+)+CO(2)...

    Text Solution

    |

  14. Oxygen has an oxidation state of +2 in

    Text Solution

    |

  15. A compound contains three elements A,B and C, if the oxidation number ...

    Text Solution

    |

  16. In which of the following pairs. the oxidation states, of sulphuric an...

    Text Solution

    |

  17. The oxidation number of S in S(8),S(2)F(2), and H(2)S, respectively, a...

    Text Solution

    |

  18. The oxidation number of C in HNC is

    Text Solution

    |

  19. The oxidation number of Cl in CaOCl(2) is

    Text Solution

    |

  20. Which of the following molecules can act as an oxidising agent as well...

    Text Solution

    |