Home
Class 12
CHEMISTRY
Which is more stable Fe^(2+) or Fe^(3+)?...

Which is more stable `Fe^(2+) or Fe^(3+)?` Why ?

Text Solution

AI Generated Solution

To determine which oxidation state of iron, \( \text{Fe}^{2+} \) or \( \text{Fe}^{3+} \), is more stable, we can analyze the electronic configurations and the stability associated with half-filled and fully filled d-orbitals. ### Step-by-Step Solution: 1. **Identify the electronic configuration of iron (Fe)**: - The atomic number of iron is 26. Its electronic configuration is: \[ \text{Fe}: [\text{Ar}] \, 3d^6 \, 4s^2 ...
Promotional Banner

Topper's Solved these Questions

  • d- AND- f- BLOCK ELEMENTS

    ICSE|Exercise EXERCISE (PART-II) (DESCRIPTIVE QUESTIONS)(SHORT ANSWER QUESTIONS)|50 Videos

  • d- AND- f- BLOCK ELEMENTS

    ICSE|Exercise EXERCISE (PART-II) (DESCRIPTIVE QUESTIONS)(LONG ANSWER QUESTIONS)|51 Videos

  • d- AND- f- BLOCK ELEMENTS

    ICSE|Exercise EXERCISE (PART-I)(MATCH AND FOLLOWINGS):|1 Videos

  • COORDINATION COMPOUNDS

    ICSE|Exercise ISC EXAMINATION QUESTION (PART- II DESCRIPTIVE QUESTIONS)|39 Videos

  • DISTINCTION BETWEEN PAIRS OF COMPOUNDS

    ICSE|Exercise QUESTIONS |155 Videos

Similar Questions

Explore conceptually related problems

Which one is more stable and why?

(i) Which one of the following is more paramagnetic Fe^(2+) or Fe^(3+)? Explain. (ii) What is the number of unpaired electrons in Mn^(2+) ion? (At.no. Mn= 25).

Assertion (A) : Fe^(3+) (g) ion is more stable than Fe^(2+)(g) ion. Reason (R) : Fe^(3+) ion has more number of unpaired electrons than Fe^(2+) ion.

Assertion: Cu^(2+) (aq) is less than Cu^(3+) (aq) but Fe^(3+) is more stable than Fe^(2+) (aq) Reason : Half filled and completely filled subshells are more stable

(i)Which one out of Fe^(2+) and Fe^(3+) ions is more paramagnetic and why (ii)Which of the following ions are expected to becoloured and why Fe^(2+), Mn^(2+), Cr^(3+), Cu^(+) Sc^(3+), Ti^(4+)

Why are Mn^(2+) compounds more stable than Fe^(2+) toward oxidation to their +3 state?

Which is a stronger reducing agent Cr^(2+) or Fe^(2+) and why?

Which is a stronger reducing agent Cr^(2+) or Fe^(2+) and why?

Answer the following (i) Which one of Fe^(2+) and Fe^(3+) ions is more paramagnetic and why? (ii) Which of the following ions are expected to coloured and why? Fe^(2+), Mn^(2+), Cr^(3+), Cu^(+), Sc^(3+),Ti^(4+) (iii) Name the two elements of first transition series which have abnormal electronic configuration and why

Why H_(2) is more stable than H_(2)^(+) while He_(2)^(+) is more stable than He_(2) ?

ICSE-d- AND- f- BLOCK ELEMENTS-EXERCISE (PART-II) (DESCRIPTIVE QUESTIONS)(VERY SHORT ANSWER QUESTIONS)
  1. What do you mean by 18 carat gold ?

    Text Solution

    |

  2. Out of Al, Zn, Mg and Fe which is the densest element?

    Text Solution

    |

  3. Which is more stable Fe^(2+) or Fe^(3+)? Why ?

    Text Solution

    |

  4. Why is Pt(IV) more stable than Ni(IV).

    Text Solution

    |

  5. K2 Pt Cl6 is well known compound while corresponding Ni compound is n...

    Text Solution

    |

  6. Why is electronic configuration 1s^2 2s^2 2p^6 3s^2 3p^6 3d^4 4s^2 n...

    Text Solution

    |

  7. How does the ionic/covalent character of the compounds of a transition...

    Text Solution

    |

  8. Why do transition elements have high value of hydration enthalpy?

    Text Solution

    |

  9. Why Fe^(2+) has smaller radius than Mn^(2+) ?

    Text Solution

    |

  10. Why do most transition metal ions exhibit paramagnetism ?

    Text Solution

    |

  11. How is the magnetic moment of a species related to the number of unpai...

    Text Solution

    |

  12. The electronic configuration of Co^(2+) and Cu^(2+) is d^7 and d^(9) r...

    Text Solution

    |

  13. Which of the following is paramagnetic ? Sc^(3+) (Z=21),Cu^(+)(Z=29)

    Text Solution

    |

  14. Why is Ti^(2+) ion paramagnetic ?

    Text Solution

    |

  15. One unpaired electron in an atom contributes a magnetic moment of 1.1 ...

    Text Solution

    |

  16. Why do transition elements shows variable oxidation states?

    Text Solution

    |

  17. Why are complex ions readily formed when water molecules react with th...

    Text Solution

    |

  18. Arrange the following in increasing order of basic character: MnO, ...

    Text Solution

    |

  19. Arrange the following in increasing order of acidic character: CrO,...

    Text Solution

    |

  20. What happens when KMnO4 is heated ?

    Text Solution

    |