Home
Class 12
CHEMISTRY
Why is KMnO(4) kept in dark coloured bot...

Why is `KMnO_(4)` kept in dark coloured bottles ?

Text Solution

Verified by Experts

`KMnO_(4)` gradually dissociates to form potassium mangante `(K_(2)MnO_(4))` in presence of light. Hence, `KMnO_(4)` is kept in dark coloured bottles.
Promotional Banner

Topper's Solved these Questions

  • D - AND F - BLOCK ELEMENTS

    CHHAYA PUBLICATION|Exercise QUESTION - ANSWER ZONE FOR BOARD EXAMINATION (SHORT ANSWER TYPE)|41 Videos

  • D - AND F - BLOCK ELEMENTS

    CHHAYA PUBLICATION|Exercise SOLVED WBCHSE SCANNER|22 Videos

  • D - AND F - BLOCK ELEMENTS

    CHHAYA PUBLICATION|Exercise PRACTICE SET 8 (Answer the following questions)|10 Videos

  • COORDINATION COMPOUNDS OR COMPLEX COMPOUNDS

    CHHAYA PUBLICATION|Exercise PRACTICE SET 21|2 Videos

  • ELECTROCHEMISTRY

    CHHAYA PUBLICATION|Exercise PRACTICE SET 4(Answer the following questions)|14 Videos

Similar Questions

Explore conceptually related problems

Why do we store silver chloride in dark coloured bottles?

Why does chloroform preserve in dark coloured bottle?

State, with equations, what happens when: XeOF_(4) is kept in a glass bottle.

Why is KMnO_(4) solution used to clean surgical instruments ?

Silver nitrate is supplied in coloured bottles because it is -

Describe the process of KMnO_(4) preparation from pyrolusite ore. Mention the reactions involved.

Concentrated nitric acid kept in a laboratory bottle books yellowish - why ?

KMnO_(4) in alkaline medium changes to -

KMnO_(4) on reaction with KOH does not give -

CHHAYA PUBLICATION-D - AND F - BLOCK ELEMENTS -QUESTION - ANSWER ZONE FOR BOARD EXAMINATION (VERY SHORT ANSWER TYPE)
  1. Give one use each of niobium and tantalum.

    Text Solution

    |

  2. Among Fe^(2+) and Fe^(3+), which is more stable ? Why ?

    Text Solution

    |

  3. Which bivalent transition metal ion in the 3d-series is the most param...

    Text Solution

    |

  4. Why is the ionic radius of Fe^(2+) less than that of Mn^(2+) ?

    Text Solution

    |

  5. Name a lanthanoid that exhibits + 4 oxidation state.

    Text Solution

    |

  6. Why is KMnO(4) kept in dark coloured bottles ?

    Text Solution

    |

  7. What happens when the pH of K(2)Cr(2)O(7) solution is increased ? Give...

    Text Solution

    |

  8. Classify the following as d-block elements, lanthanoids and actinoids ...

    Text Solution

    |

  9. Which has the highest density ? Al, Mg, Cu, Ni, Fe

    Text Solution

    |

  10. Substances made of copper form green coloured coating when left in moi...

    Text Solution

    |

  11. The extent of actinoid contraction is more than lanthanoid contraction...

    Text Solution

    |

  12. Which element is used as a 'bone nail' in surgery ?

    Text Solution

    |

  13. Write the ionic equation of the disproportionation reaction of CrO(4)^...

    Text Solution

    |

  14. Transition metal ions have high hydration enthalpy. Explain why ?

    Text Solution

    |

  15. Name the elements of the first transition series with the highest and ...

    Text Solution

    |

  16. Name the transition elements with the highest and the lowest density.

    Text Solution

    |

  17. Why are transition elements poor reducing agents ?

    Text Solution

    |

  18. Calculate 'spin only' magnetic moment of Fe^(3+) ion.

    Text Solution

    |

  19. Which elements are called ferrous metals ?

    Text Solution

    |

  20. Which elements are called platinum metals ?

    Text Solution

    |