AIPMT 2008 | Coordination Compounds Question 68 | Chemistry

AIPMT 2008

MCQ (Single Correct Answer)

-1

In which of the following coordination entities the magnitude of $$\Delta $$_o (CFSE in octahedral field) will be maximum?
(At. No. Co = 27)

[Co(CN)₆]^3$$-$$

[Co(C₂O₄)₃]3^$$-$$

[Co(H₂O)₆]³⁺

[Co(NH₃)₆]³⁺

AIPMT 2007

MCQ (Single Correct Answer)

-1

Which of the following will give a pair of enantiomorphs?
(en = NH₂CH₂CH₂NH₂)

[Cr(NH₃)₆][Co(CN)₆]

[Co(en)₂Cl₂]Cl

[Pt(NH₃)₄][PtCl₆]

[Co(NH₃)₄Cl₂]NO₂

AIPMT 2007

MCQ (Single Correct Answer)

-1

The d electron configurations of Cr²⁺, Mn²⁺, Fe²⁺ and Ni²⁺ are 3d⁴, 3d⁵, 3d⁶ and 3d⁸ respectively. Which one of the following aqua complexes will exhibit the minimum paramagnetic behaviour?

(At. No. Cr = 24, Mn = 25, Fe = 26, Ni = 28)

[Fe(H₂O)₆]²⁺

[Ni(H₂O)₆]²⁺

[Cr(H₂O)₆]²⁺

[Mn(H₂O)₆]²⁺

AIPMT 2006

MCQ (Single Correct Answer)

-1

[Cr(H₂O)₆]Cl₃ (At. no. of Cr = 24) has a magnetic momen of 3.83 B.M. The correct distribution of 3d electrons in the chromium of the complex is

$$3d_{x\,y}^1,\,3d_{y\,z}^1,\,3d_{z^2}^{1}$$

$$3d_{\left( {x^2 - y^2} \right)}^1,\,3d_{z^2}^1,\,3d_{xz}^1$$

$$3d_{x\,y}^1,\,\,3d_{\left( {x^2 - y^2} \right)}^1,\,3d_{y\,z}^1$$

$$3d_{x\,y}^1,\,3d_{y\,z}^1,\,3d_{x\,z}^1$$

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