Q12 / 75 · JEE Main 2026 (06 April Shift 1) · Chemistry
Which of the following are true about the energy of the given d-orbitals of a tetrahedral complex?
A. $d_{xy} = d_{xz} > d_{x^2-y^2}$
B. $d_{xy} = d_{yz} > d_{z^2}$
C. $d_{x^2-y^2} > d_{z^2} > d_{xz}$
D. $d_{x^2-y^2} = d_{z^2} < d_{xz}$
Choose the correct answer from the given below:
A. $d_{xy} = d_{xz} > d_{x^2-y^2}$
B. $d_{xy} = d_{yz} > d_{z^2}$
C. $d_{x^2-y^2} > d_{z^2} > d_{xz}$
D. $d_{x^2-y^2} = d_{z^2} < d_{xz}$
Choose the correct answer from the given below:
- Correct answerAA, B and D only
- BA and B only
- CB and D only
- DB, C and D only
Solution
In a tetrahedral complex, the five d-orbitals split into two sets due to the crystal field created by the ligands.
The ligands approach the central metal ion between the axes. The $d_{xy}$, $d_{yz}$, and $d_{xz}$ orbitals (forming the $t_2$ set) point between the axes, experiencing greater repulsion from the ligands, and thus have higher energy.
The $d_{x^2-y^2}$ and $d_{z^2}$ orbitals (forming the $e$ set) point along the axes, experiencing lesser repulsion, and thus have lower energy.
Therefore, the energy order is $d_{xy} = d_{yz} = d_{xz} > d_{x^2-y^2} = d_{z^2}$.
Evaluating the given statements:
A. $d_{xy} = d_{xz} > d_{x^2-y^2}$ is true.
B. $d_{xy} = d_{yz} > d_{z^2}$ is true.
C. $d_{x^2-y^2} > d_{z^2} > d_{xz}$ is false.
D. $d_{x^2-y^2} = d_{z^2} < d_{xz}$ is true.
Hence, statements A, B, and D are true.
Answer: A, B and D only
The ligands approach the central metal ion between the axes. The $d_{xy}$, $d_{yz}$, and $d_{xz}$ orbitals (forming the $t_2$ set) point between the axes, experiencing greater repulsion from the ligands, and thus have higher energy.
The $d_{x^2-y^2}$ and $d_{z^2}$ orbitals (forming the $e$ set) point along the axes, experiencing lesser repulsion, and thus have lower energy.
Therefore, the energy order is $d_{xy} = d_{yz} = d_{xz} > d_{x^2-y^2} = d_{z^2}$.
Evaluating the given statements:
A. $d_{xy} = d_{xz} > d_{x^2-y^2}$ is true.
B. $d_{xy} = d_{yz} > d_{z^2}$ is true.
C. $d_{x^2-y^2} > d_{z^2} > d_{xz}$ is false.
D. $d_{x^2-y^2} = d_{z^2} < d_{xz}$ is true.
Hence, statements A, B, and D are true.
Answer: A, B and D only
Hence, the correct answer is option: 'A'.