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t(2g) orbitals in octahedral complexes a...

`t_(2g)` orbitals in octahedral complexes are

A

`d_(xy),d_(yz),d_(xz)`

B

`d_(xy),d_(x^(2)-y^(2)),d_(z^(2))`

C

`d_(x^(2)-y^(2)),d_(z^(2))`

D

`d_(xy),d_(x^(2)-y^(2))`

Text Solution

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The correct Answer is:
A
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Which of the following statements is incorrect? (i) In octahedral complexes, t_(2g) orbitals posses low energy as compared to e_(g) orbitals (ii) In octahedral complexes, e_(g) orbitals possess low energy as compared to t_(2g) orbitals (iii) In tetrahedral complexes, t_(2g) orbitals posses high energy as compared to e_(g) orbitals

When a transition metal ion (usually) is involved in octahedral complex formation, the five degenerate d-orbitals split into two set of degenerate orbitals (3+2) . Three degenerate orbitals of lower energy (d_(xy),d_(yz),d_(zx)) and a set of degenerate orbitals of higher energy (d_(x^(2)-y^(2)" and "d_(z^(2)) . The orbitals with lower energy are called t_(2g) orbitals and those with higher energy are called e_(g) orbitals. In octahedral complexes, positive metal ion may be considered to be present at the centre and negative ligands at the corner of a regular octahedron. As lobes of d_(x^(2)-y^(2)" and "d_(z^(2) lie along the axis, i.e., along the ligands, the repulsions are more and so, high is the energy. The lobes of the remaining three d-orbitals lie between the Axis i.e., between the ligands. The repulsions between them are less, so lesser the energy. In the octahedral complexes, if metal ion has electrons more than 3, then for pairing them, the options are (i) Pairing may start with 4th electron in t_(2g) orbitals. (ii) Pairing may start normally with 6th electron when t_(2g)" and "e_(g) orbitals are singly filled. Select incorrect match for the following complexes.

When a transition metal ion (usually) is involved in octahedral complex formation, the five degenerate d-orbitals split into two set of degenerate orbitals (3+2) . Three degenerate orbitals of lower energy (d_(xy),d_(yz),d_(zx)) and a set of degenerate orbitals of higher energy (d_(x^(2)-y^(2)" and "d_(z^(2)) . The orbitals with lower energy are called t_(2g) orbitals and those with higher energy are called e_(g) orbitals. In octahedral complexes, positive metal ion may be considered to be present at the centre and negative ligands at the corner of a regular octahedron. As lobes of d_(x^(2)-y^(2)" and "d_(z^(2) lie along the axis, i.e., along the ligands, the repulsions are more and so, high is the energy. The lobes of the remaining three d-orbitals lie between the Axis i.e., between the ligands. The repulsions between them are less, so lesser the energy. In the octahedral complexes, if metal ion has electrons more than 3, then for pairing them, the options are (i) Pairing may start with 4th electron in t_(2g) orbitals. (ii) Pairing may start normally with 6th electron when t_(2g)" and "e_(g) orbitals are singly filled. Which of the following electronic arrangement is/are possible for inner orbital octahedral complex. (P) t_(2g)^(3)e_(g)^(2)" "(Q) t_(2g)^(6)e_(g)^(1) (R ) t_(2g)^(3)e_(g)^(0)" "(S) t_(2g)^(4)e_(g)^(2) Select the correct code :

When a transition metal ion (usually) is involved in octahedral complex formation, the five degenerate d-orbitals split into two set of degenerate orbitals (3+2) . Three degenerate orbitals of lower energy (d_(xy),d_(yz),d_(zx)) and a set of degenerate orbitals of higher energy (d_(x^(2)-y^(2)" and "d_(z^(2)) . The orbitals with lower energy are called t_(2g) orbitals and those with higher energy are called e_(g) orbitals. In octahedral complexes, positive metal ion may be considered to be present at the centre and negative ligands at the corner of a regular octahedron. As lobes of d_(x^(2)-y^(2)" and "d_(z^(2) lie along the axis, i.e., along the ligands, the repulsions are more and so, high is the energy. The lobes of the remaining three d-orbitals lie between the Axis i.e., between the ligands. The repulsions between them are less, so lesser the energy. In the octahedral complexes, if metal ion has electrons more than 3, then for pairing them, the options are (i) Pairing may start with 4th electron in t_(2g) orbitals. (ii) Pairing may start normally with 6th electron when t_(2g)" and "e_(g) orbitals are singly filled. In which of the following configurations, hybridisation and magnetic moment of octahedral complexes are independent of nature of ligands. (P) d^(3) configuration of any metal cation (Q) d^(6) configuration of IIIrd transition series metal cation (R ) d^(8) configuration of Ist transition series metal cation (S) d^(7) configuration of any metal cation Select the correct code:

Which of the following statements is/are correct? (i) In octahedral complexes, t_(2g) orbitals posses low energy as compared to e_g orbitals (ii) In tetrahedral complexes , t_2 orbitals posses high energy as compared to e orbitals (iii) In octahedral complexes , e_g orbitals possess low energy as compared to t_(2g) orbitals

Which of the following statements is/are correct ? (i) In octahedral complexes , t_(2 g) orbitals possess low energy as compared to e_(g) orbitals . (ii) In tetrahedral complexes , t_(2 ) orbitals possess high energy as compared to e orbitals . (iii) In octahedral complexes , e_(g) orbitals possess low energy as compared to t_(2 g) orbitals .

Which of the following statements are correct? (i) In octahedral complexes, d_z2, d_(x^2-y^2) orbitals have higher energy than d_(xy) , d_(yz) and d_(zx) orbitals. (ii) In tetrahedral complexes, d_(xy), d_(yz), d_(zx) orbitals have higher energy than d_z2 and d_(x^2-y^2) orbitals. (iii) The colours of complexes are due to electronic transitions from one set of d-orbitals to another set of orbitals. (iv) Delta_(tetrahedral)=9/4, Delta_(octahedral)