Home
Class 11
CHEMISTRY
Why it is not advisable to dissolve KMnO...

Why it is not advisable to dissolve `KMnO_(4)` in cold and concentrated `H_(2)SO_(4)`

Text Solution

Verified by Experts

Because explosive `Mn_(2)O_(7)` is formed.
`2KMnO_(4)+2H_(2)SO_(4)toMn_(2)O_(7)+2KHSO_(4)+H_(2)O`
`2Mn_(2)O_(7)to4MnO_(2)+3O_(2)`.
Promotional Banner

Topper's Solved these Questions

  • D & F-BLOCK ELEMENTS & THEIR IMPORTANT COMPOUNDS

    RESONANCE ENGLISH|Exercise Exercise 2|40 Videos
  • D & F-BLOCK ELEMENTS & THEIR IMPORTANT COMPOUNDS

    RESONANCE ENGLISH|Exercise Exercise 3|65 Videos
  • D & F-BLOCK ELEMENTS & THEIR IMPORTANT COMPOUNDS

    RESONANCE ENGLISH|Exercise Match the column|1 Videos
  • CHEMICAL EQUILIBRIUM

    RESONANCE ENGLISH|Exercise Advanced Level Problems (Part-3)(Stage-5)|2 Videos
  • GASEOUS STATE

    RESONANCE ENGLISH|Exercise ORGANIC CHEMISTRY(Hydrocarbon)|18 Videos

Similar Questions

Explore conceptually related problems

An inorganic Compound (A) has garnet red prismatic crystals. (A) is modertely soluble in water and dissolved in cold concentrated H_(2)SO_(4) to yield red crystal (B) . In presence of dilute H_(2)SO_(4) it converts a pungent gas (C ) into yellow turbidity (D) and converts a Suffocating gas (E) into a green solution (F). the gas (C ) and (E) also combine to produced the yellow turbidity (D) . With KI and starch in presence of dilute. H_(2)SO_(4) (A) and concentrated H_(2)SO_(4) Mixture used as a cleansing agent for glassware in the laboratory . identify (A) and explain the reactions.

State true or false: Reaction of K_(2)Cr_(2)O_(7) with cold and concentrated H_(2)SO_(4) yields bright orange/red precipitate of CrO_(3) write reactions involved.

What happen when(i) a small amount of KMnO_(4) is added to concentrated H_(2)SO_(4) (ii) an excess amount of KMnO_(4) is added to concentrated H_(2)SO_(4) solution.

On adding KMnO_(4) to cold conc. H_(2)SO_(4), it gives

Zinc readily liberates hydrogen from cold dilute H_(2)SO_(4) but not from cold concentrated H_(2)SO_(4) Explain

On addition of small amoung of KMnO_(4) to concentrated H_(2)SO_(4) , a green oily compound is obtained which is highly explosive in nature. Identify the compound from the following.

On addition of small amoung of KMnO_(4) to concentrated H_(2)SO_(4) , a green oily compound is obtained which is highly explosive in nature. Identify the compound from the following.

On addition of small amount of KMnO_(4) to concentrated H_(2)SO_(4) , a green oily compound is obtained which is highly explosive in nature. Identify the compound from the following

Assertion : CrO_(3) is an acid anhydride. Reason: CrO_(3) is obtained as bright orange crystals by the reaction of K_(2) Cr_(2) O_(7) with cold concentrated H_(2) SO_(4) .

When ethylene glycol is heated with a mixture of concentrated HNO_(3) and concentrated H_(2)SO_(4) , it produces

RESONANCE ENGLISH-D & F-BLOCK ELEMENTS & THEIR IMPORTANT COMPOUNDS -Exercise 1
  1. Why does AgNO(3) produced a black stain on the skin?

    Text Solution

    |

  2. Why is AgBr used in photography ?

    Text Solution

    |

  3. Why it is not advisable to dissolve KMnO(4) in cold and concentrated H...

    Text Solution

    |

  4. What happen when: (a) Green Vitriol is strongly heated. , (b) FeSO(4)...

    Text Solution

    |

  5. State true or false: Reaction of K(2)Cr(2)O(7) with cold and concentra...

    Text Solution

    |

  6. Write balanced chemical equations for: (i) Mixture of K(2)Cr(2)O(7) ...

    Text Solution

    |

  7. What are inner transition elements? Decide which of the following atom...

    Text Solution

    |

  8. Actinoid contraction is greater from element to element than lanthanoi...

    Text Solution

    |

  9. The chemistry of the actinoid elements is not so smooth as that of the...

    Text Solution

    |

  10. Why Sm^(2+) , Eu^(2+) and Yb^(2+) ions are good reducing agents , but ...

    Text Solution

    |

  11. The transition elements have a general electronic configuration.

    Text Solution

    |

  12. The atomic volume of the transition elements are low compared with ele...

    Text Solution

    |

  13. The wrong statement regarding transition metals among the following is...

    Text Solution

    |

  14. First IE of 5d seties element are higher than those of 3d and 4d serie...

    Text Solution

    |

  15. Ionisation energies of Ni and Pt in Kjmol^(-1) are given below {:(,u...

    Text Solution

    |

  16. Maximum oxidation state is shown by:

    Text Solution

    |

  17. Which of the following statement is false?

    Text Solution

    |

  18. Which of the following has the maximum number of unpaired d-electron?

    Text Solution

    |

  19. Highest magnetic moments, shown by the transition metal ion with the ...

    Text Solution

    |

  20. Magnetic moment of Cr^(+2)(Z=24),Mn^(+2)(Z=25) and Fe^(2+) (Z=26) are ...

    Text Solution

    |