Home
Class 12
CHEMISTRY
Compare the values of formation constant...

Compare the values of formation constant, `K_(f)` of the following coordination entities with their stabilities.
`[Ni(NH_(3))_(6)]^(2+), k_(f)=5.31xx10^(8)," "[Ni(en)_(3)]^(2+), k_(f)=1.12 xx10^(18)`

Text Solution

Verified by Experts

The stability of coordination compounds increases with increase in the value of formation constatns. Comparing the two formation constants, we can say that `[Ni(en)_(3)]^(2+)` is more stable. Generally, in complex formation, the chelating ligands (di - or polydenatate ligands) confer greater stability than the non- chelating ligands (monodentate ligands). This is known as chelate effect.
Promotional Banner

Topper's Solved these Questions

  • COORDINATION COMPOUNDS OR COMPLEX COMPOUNDS

    CHHAYA PUBLICATION|Exercise ENTRANCE QUESTIONS (ENGINEERING AND MEDICAL ARCHIVE) (WBJEE)|8 Videos

  • COORDINATION COMPOUNDS OR COMPLEX COMPOUNDS

    CHHAYA PUBLICATION|Exercise ENTRANCE QUESTIONS (ENGINEERING AND MEDICAL ARCHIVE) (JEE-MAIN)|13 Videos

  • COORDINATION COMPOUNDS OR COMPLEX COMPOUNDS

    CHHAYA PUBLICATION|Exercise SOLVED NCERT TEXTBOOK PROBLEMS (NCERT EXERCISE QUESTIONS)|71 Videos

  • CHEMISTRY IN EVERYDAY LIFE

    CHHAYA PUBLICATION|Exercise PRACTICE SET 15|15 Videos

  • D - AND F - BLOCK ELEMENTS

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

Similar Questions

Explore conceptually related problems

Why is the stability of [Ni(en)_(3)]^(2+) more than that of [Ni(NH_(3))_(6)]^(2+) ?

Consider the following equilibria along with the respective stability constants : Ag^(+)+NH_(3)hArr [Ag(NH_(2))]^(+),K_(1)=3.5xx10^(3) [Ag(NH_(3))]^(+)+NH_(3)hArr [Ag(NH_(3))_(2)]^(+), K_(2)=1.7xx10^(3) Calculate the overal formiation constant of [Ag(NH_(3))_(2)]^(+) .

The values of rate constants of some reactions are given below . Determine the order in each case. k=6.2xx10^(-3)s^(-1)

Find out the value of K_(c) for each of of the following equilibria from the value of K_(p) : 2NOCl(g)hArr 2NO(g)+Cl_(2)(g),K_(p)=1.8xx10^(-2) at 500K

What will be the correct order for the wavelengths of absorption in the visible region for the following : [Ni(NO_(2))_(6)]^(4-),[Ni(NH_(3))_(6)]^(2+) lt [Ni(H_(2)O)_(6)]^(2+) ?

Identify the reaction order from the following rate constants. k=3 xx 10^-4s^-1

Justify the following reactions are redox reactions : 2K(s)+F_(2)(g)to2K^(+)F^(-(s)

As per stability constants (imaginery) given, which of the following is the strongest ligand - (i) Cu^(2+)+4NH_(2) hArr [Cu(NH_(3))_(4)]^(2+),(K=4.5xx10^(11)) (ii) Cu^(2+)+4CN^(-)hArr [Cu(CN)_(4)]^(2+),(K=2.0xx10^(27)) (iii) Cu^(2+) +2en hArr [Cu(en)_(2)]^(2+),(K=3.0xx10^(15)) (iv) Cu^(2+)+4H_(2)OhArr [Cu(H_(2)O)_(4)]^(2+),(K=9.5xx10^(8))

Arrange the following sparingly soluble ionic compounds in the increasing order of molar solubilities. (1) MX:K_(sp)=8.1xx10^(-17) (2) AX_(2),K_(sp)=4xx10^(-9) (3) PX_(3),K_(sp)=2.7xx10^(-19) .

CHHAYA PUBLICATION-COORDINATION COMPOUNDS OR COMPLEX COMPOUNDS-HIGHER ORDER THINKING SKILL (HOTS) QUESTIONS
  1. Explain the following : (1) Nickel does not form low spin octahedral c...

    Text Solution

    |

  2. Explain the following : (2) The pi- complexes are known for the transi...

    Text Solution

    |

  3. Explain the following : (3) CO is considered to be a stronger ligand t...

    Text Solution

    |

  4. Co^(2+) is easily oxidised to Co^(3+) in the presence of a strong liga...

    Text Solution

    |

  5. Which of the following is the most stable complex ? [Fe(NH(3))(6)]^(...

    Text Solution

    |

  6. What do you mean by macrocyclic effect in relation to the stability of...

    Text Solution

    |

  7. Why do the metals of the second and third transition series have a gre...

    Text Solution

    |

  8. How many moles of AgCl will be precipitated if an excess of AgNO(3) so...

    Text Solution

    |

  9. Give an example of a coordination compound in which the flexidentate s...

    Text Solution

    |

  10. [CuCl(4)]^(2-) exists but [CuI(4)]^(2-) does not. Give reason.

    Text Solution

    |

  11. Can the metal carbonyl compounds be called organometallics ?

    Text Solution

    |

  12. Compare the values of formation constant, K(f) of the following coordi...

    Text Solution

    |

  13. A coordination compound, CrCl(3).4H(2)O gives a precipitate of AgCl wi...

    Text Solution

    |

  14. Show all stereoisomers of [Co(NH(3))(2)Cl(2)(en)]^(+). Mention their i...

    Text Solution

    |

  15. Give the structures of the stereo isomers of [Co(en)(2)Br(2)]^(+) and...

    Text Solution

    |

  16. A metal complex having composition Cr(NH(3))(4)Cl(2)Br has been isolat...

    Text Solution

    |

  17. Will there be any change in colour of the compound formed, if [Ti(H(2)...

    Text Solution

    |

  18. If a coordination compound, CoCl(3).4NH(3) is heated, it does not give...

    Text Solution

    |

  19. Arrange the following complexes in decreasing order of their electrica...

    Text Solution

    |

  20. Octahedral and tetrahedral complexes made of the same metal ion have d...

    Text Solution

    |