JEE Main 2019 (Online) 8th April Morning Slot | Coordination Compounds Question 211 | Chemistry

The correct order of the spin-only magnetic moment of metal ions in the following low-spin complexes, [V(CN)₆]^4–,[Fe(CN)₆]^4–, [Ru(NH₃)₆]³⁺, and [Cr(NH₃)₆]²⁺ , is :

V²⁺ > Ru³⁺ > Cr²⁺ > Fe²⁺

V²⁺ > Cr²⁺ > Ru³⁺ > Fe²⁺

Cr²⁺ > V²⁺ > Ru³⁺ > Fe²⁺

Cr²⁺ > Ru³⁺ > Fe²⁺ > V²⁺

JEE Main 2019 (Online) 12th January Evening Slot

MCQ (Single Correct Answer)

-1

The magnetic moment of an octahedral homoleptic Mn(II) complex is 5.9 BM. The suitable ligand for this complex is -

CN^$$-$$

ethylenediamine

NCS^–

JEE Main 2019 (Online) 12th January Morning Slot

MCQ (Single Correct Answer)

-1

The pair of metal ions that can give a spin only magnetic moment of 3.9 BM for the complex [M(H₂O)₆]Cl₂, is -

V²⁺ and Fe²⁺

V²⁺ and Co²⁺

Co²⁺ and Fe²⁺

Cr²⁺ and Mn²⁺

JEE Main 2019 (Online) 12th January Morning Slot

MCQ (Single Correct Answer)

-1

The metal d-orbitals that are directly facing the ligands in K₃[Co(CN)₆] are -

d_x²_$$-$$y² and d_z²

d_xy, d_xz and d_yz

d_xz, d_yz and d_z²

d_xy and d_{x² $$-$$ y²}

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