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.
(i) Draw the diagram which indicates the splitting of d-orbitals in tetrahedral field.
(ii) Write any one limitation of valence bond theory.
(i)[Ni(CN)₄]²⁻ and [Ni(CO)(_4)] have different structures, but do not differ in their magnetic behaviour. Explain.
(ii) Write the formula of Tetraamineaquachloridocobalt(III)chloride.
(i) Write two postulates of Werner's coordination theory.
(ii) Draw the geometrical isomers of [(NH_3)_3(NO_2)_3] and give their structures.
A racing track is built around an elliptical ground whose equation is given by \[ 9x^2 + 16y^2 = 144 \] The width of the track is \(3\) m as shown. Based on the given information answer the following: 
(i) Express \(y\) as a function of \(x\) from the given equation of ellipse.
(ii) Integrate the function obtained in (i) with respect to \(x\).
(iii)(a) Find the area of the region enclosed within the elliptical ground excluding the track using integration.
OR
(iii)(b) Write the coordinates of the points \(P\) and \(Q\) where the outer edge of the track cuts \(x\)-axis and \(y\)-axis in first quadrant and find the area of triangle formed by points \(P,O,Q\).