Home
Class 12
CHEMISTRY
Explain the following observations : Alt...

Explain the following observations : Although `Co^(2+)` ion appears to be stable, it is easily oxidised to `Co^(3+)` ion in the presence of a strong ligand.

Promotional Banner

Topper's Solved these Questions

  • d-AND f- BLOCK ELEMENTS

    MODERN PUBLICATION|Exercise EXERCISE|1089 Videos

  • COORDINATION COMPOUNDS

    MODERN PUBLICATION|Exercise EXERCISE|971 Videos

  • ELECTROCHEMISTRY

    MODERN PUBLICATION|Exercise EXERCISE|529 Videos

Similar Questions

Explore conceptually related problems

Explain the following observation : Cu^+ ion is not known in aqueous solutions.

Which of the following complexes formed by Cu^(2+) ions is most stable ?

Explain the following observations : Despite lower value of its electron gain enthalpy with negative sign, fluorine (F_2) is a stronger oxidising agent than Cl_2 .

Evaluate the following integrals: intcosx cos 2x cos3x dx

Give an explanation for the following observation : With the same d-orbital configuration (d^4) , Cr^(2+) ion is a reducing agent but Mn^(3+) ion is an oxidising agent.

Evaluate the following sec ( cos^(-1) ( 2/3)) .

Solve the following trigonometric equation : cos x + cos 3x - 2 cos2x=0 .

Solve the following trigonometric equation : cos x + cos 3x + cos 2x = 0.

Solve the following trigonometric equation : cos 3x + cosx -cos 2x = 0 .

Co(II) is stable in aqueous solution, but in presence of complexing reagent it is easily oxidised. Explain.

MODERN PUBLICATION-d-AND f- BLOCK ELEMENTS-EXERCISE
  1. Account for the following : The E^@ value for the Mn^(3+)|Mn^(2+) coup...

    Text Solution

    |

  2. Explain the following observation : Cu^+ ion is not known in aqueous s...

    Text Solution

    |

  3. Explain the following observations : Although Co^(2+) ion appears to b...

    Text Solution

    |

  4. Why E^(Theta) values for Mn, Ni and Zn are more negative than expected...

    Text Solution

    |

  5. Write chemical reaction for preparation of K2Cr207 from chromite ore.

    Text Solution

    |

  6. Give oxidation of KI by acidified K2Cr2O7 .

    Text Solution

    |

  7. Write the iupac name of following : [Ni (H2O) 2 (NH3)4]SO4

    Text Solution

    |

  8. What are lanthanoids ? Explain lanthanoid contraction.

    Text Solution

    |

  9. Why transition elements show catalytic property? Give two examples of ...

    Text Solution

    |

  10. How would you account for the following? The atomic radii of the metal...

    Text Solution

    |

  11. Account for the following : The E^@ value for the Mn^(3+)|Mn^(2+) coup...

    Text Solution

    |

  12. Why is the highest oxidation state of a metal exhibited in its oxide...

    Text Solution

    |

  13. Explain the following observation : Cu^+ ion is not known in aqueous s...

    Text Solution

    |

  14. Which of the following exhibits the greatest number of oxidation state...

    Text Solution

    |

  15. Give an explanation for the following observation : With the same d-or...

    Text Solution

    |

  16. How would you account for the following ? The actinoids exhibit a larg...

    Text Solution

    |

  17. How would you account for the following ? Most of the transition metal...

    Text Solution

    |

  18. Why enthalpy of atomisation of the transition elements are quite high ...

    Text Solution

    |

  19. The 4d and 5d series of transition metals have more frequent metal-met...

    Text Solution

    |

  20. Explain the following observation giving an appropriate reason : Mn^(2...

    Text Solution

    |