Given below are two statements :
Statement I : Among Zn, Mn, Sc and Cu, the energy required to remove the third valence electron is highest for Zn and lowest for Sc.
Statement II : The correct order of the following complexes in terms of CFSE is $[\text{Co(H}_2\text{O})_6]^{2+} < [\text{Co(H}_2\text{O})_6]^{3+} < [\text{Co(en)}_3]^{3+}$.
In the light of the above statements, choose the correct answer from the options given below :
Which of the following complexes will show coordination isomerism?
A. $[\mathrm{Ag(NH}_3)_2][\mathrm{Ag(CN)}_2]$
B. $[\mathrm{Co(NH}_3)_6][\mathrm{Cr(CN)}_6]$
C. $[\mathrm{Co(NH}_3)_6][\mathrm{Co(CN)}_6]$
D. $[\mathrm{Fe(NH}_3)_6][\mathrm{Co(CN)}_6]$
E. $[\mathrm{Co(NH}_3)_6][\mathrm{Fe(CN)}_6]$
Choose the correct answer from the options given below:
Match List - I with List - II.
| List - I Chromium (III) Complexes (en = ethylene diamine) |
List - II Δ₀ (cm⁻¹) |
|
|---|---|---|
| A | [Cr(CN)₆]³⁻ | I. 15,060 |
| B | [CrF₆]³⁻ | II. 17,400 |
| C | [Cr(H₂O)₆]³⁺ | III. 22,300 |
| D | [Cr(en)₃]³⁺ | IV. 26,600 |
Choose the correct answer from the options given below:
The correct increasing order of spin-only magnetic moment values of the complex ions
[MnBr4]2− (A), [Cu(H2O)6]2+ (B), [Ni(CN)4]2− (C) and [Ni(H2O)6]2+ (D) is :
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