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Class 12
Chemistry
Coordination Compounds
give the oxidation state d orbital occupation and...

Question:
Give the oxidation state, d-orbital occupation and coordination number of the central metal ion in the following complexes:

(i) K₃[Co(C₂O₄)₃]

(ii) cis-[Cr(en)₂Cl₂]Cl

(iii) (NH₄)₂[CoF₄]

(iv) [Mn(H₂O)₆]SO₄

Answer:

(i) K₃[Co(C₂O₄)₃]

The central metal ion is Co.

Its coordination number is 6.

The oxidation state can be given as:

x - 6 = -3

x = + 3

The d orbital occupation for Co³⁺is t_2g⁶e_g⁰.

(ii) cis-[Cr(en)₂Cl₂]Cl

The central metal ion is Cr.

The coordination number is 6.

The oxidation state can be given as:

x + 2(0) + 2(-1) = +1

x - 2 = +1

x = +3

The d orbital occupation for Cr³⁺ is t_2g³.

(iii) (NH₄)₂[CoF₄]

The central metal ion is Co.

The coordination number is 4.

The oxidation state can be given as:

x - 4 = -2

x = + 2

The d orbital occupation for Co²⁺ is e_g⁴ t_2g³.

(iv) [Mn(H₂O)₆]SO₄

The central metal ion is Mn.

The coordination number is 6.

The oxidation state can be given as:

x + 0 = +2

x = +2

The d orbital occupation for Mn is t_2g³ e_g².

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Question:
Give the oxidation state, d-orbital occupation and coordination number of the central metal ion in the following complexes:

(i) K₃[Co(C₂O₄)₃]

(ii) cis-[Cr(en)₂Cl₂]Cl

(iii) (NH₄)₂[CoF₄]

(iv) [Mn(H₂O)₆]SO₄

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Question: Give the oxidation state, d-orbital occupation and coordination number of the central metal ion in the following complexes: (i) K3[Co(C2O4)3] (ii) cis-[Cr(en)2Cl2]Cl (iii) (NH4)2[CoF4] (iv) [Mn(H2O)6]SO4

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Question:
Give the oxidation state, d-orbital occupation and coordination number of the central metal ion in the following complexes:

(i) K₃[Co(C₂O₄)₃]

(ii) cis-[Cr(en)₂Cl₂]Cl

(iii) (NH₄)₂[CoF₄]

(iv) [Mn(H₂O)₆]SO₄