Assertion (A): [Cr(H$_2$O)$_6$]Cl$_2$ and [Fe(H$_2$O)$_6$]Cl$_2$ are examples of homoleptic complexes.
Reason (R): All the ligands attached to the metal are the same.
Reason (R): All the ligands attached to the metal are the same.
Show Hint
- Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
- Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
- Assertion (A) is true, but Reason (R) is false.
- Assertion (A) is false, but Reason (R) is true.
The Correct Option is A
Solution and Explanation
To solve this question, let's analyze the assertion and reason provided.
Assertion (A):
[Cr(H2O)6]Cl2 and [Fe(H2O)6]Cl2 are examples of homoleptic complexes.
Reason (R):
All the ligands attached to the metal are the same.
1. Homoleptic Complexes:
Homoleptic complexes are those in which all the ligands attached to the central metal atom or ion are the same. In this case, both [Cr(H2O)6]Cl2 and [Fe(H2O)6]Cl2 have six water molecules (H2O) as ligands, making them homoleptic complexes.
2. Evaluation of Assertion (A):
Both [Cr(H2O)6]Cl2 and [Fe(H2O)6]Cl2 contain the same type of ligand, H2O. Therefore, Assertion (A) is correct.
3. Evaluation of Reason (R):
The reason states that all the ligands attached to the metal are the same, which is true in the case of homoleptic complexes. Therefore, Reason (R) is also correct.
4. Conclusion:
Both the assertion and the reason are correct, and the reason correctly explains the assertion.
Final Answer:
The correct option is that both the assertion and reason are true, and the reason explains the assertion.
Top Questions on Coordination Compounds
The Crystal Field Theory (CFT) of coordination compounds is based on the effect of different crystal fields (provided by the ligands taken as point charges) on the degeneracy of d-orbital energies of the central metal atom/ion. The splitting of the d-orbitals provides different electronic arrangements in strong and weak crystal fields. In tetrahedral coordination entity formation, the d-orbital splitting is smaller as compared to the octahedral entity.
What is crystal field splitting energy?- CBSE CLASS XII - 2025
- Chemistry
- Coordination Compounds
- On the basis of \(\Delta_0\) and P (pairing energy), how can you differentiate between a strong field ligand and a weak field ligand?
- CBSE CLASS XII - 2025
- Chemistry
- Coordination Compounds
- Why are low spin tetrahedral complexes rarely observed?
- CBSE CLASS XII - 2025
- Chemistry
- Coordination Compounds
The Crystal Field Theory (CFT) of coordination compounds is based on the effect of different crystal fields (provided by the ligands taken as point charges) on the degeneracy of d-orbital energies of the central metal atom/ion. The splitting of the d-orbitals provides different electronic arrangements in strong and weak crystal fields. In tetrahedral coordination entity formation, the d-orbital splitting is smaller as compared to the octahedral entity.
On the basis of CFT, explain why [Ti(H$_2$O)$_6$]Cl$_3$ complex is coloured? What happens on heating the complex [Ti(H$_2$O)$_6$]Cl$_3$? Give reason.- CBSE CLASS XII - 2025
- Chemistry
- Coordination Compounds
- Write the IUPAC name of the complex \([ \text{Pt(en)}_2 \text{Cl}_2 ]^{2+}\). Draw the structure of the geometrical isomer of this complex which is optically inactive.
- CBSE CLASS XII - 2025
- Chemistry
- Coordination Compounds
Questions Asked in CBSE CLASS XII exam
- In the circuit, three ideal cells of e.m.f. \( V \), \( V \), and \( 2V \) are connected to a resistor of resistance \( R \), a capacitor of capacitance \( C \), and another resistor of resistance \( 2R \) as shown in the figure. In the steady state, find (i) the potential difference between P and Q, (ii) the potential difference across capacitor C.
- CBSE CLASS XII - 2025
- Current electricity
- Calculate the molality of a solution prepared by dissolving 5 g of NaOH in 450 g of water. (Molar mass of NaOH = 40 g/mol)
- An aqueous solution of NaOH was made and its molar mass from the measurement of osmotic pressure at 27°C was found to be 25 g mol$^{-1$.}
Calculate the percentage dissociation of NaOH in this solution.- CBSE CLASS XII - 2025
- Solutions
- A small conducting sphere A of radius \( r \) charged to a potential \( V \), is enclosed by a spherical conducting shell B of radius \( R \). If A and B are connected by a thin wire, calculate the final potential on sphere A and shell B.
- CBSE CLASS XII - 2025
- Electric charges and fields
- You are Mrs. Savita Manjrekhar, a professor in English. You are invited to be one of the judges for the inter-school debate competition by the Principal of J.M. Public School, Cochin. Write a formal letter expressing your inability to accept the invitation.
- CBSE CLASS XII - 2025
- Letter Writing