Pick Out The Paramagnetic Species Of The Following

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Question

Pick out the paramagnetic species of the following

diffcult

Solution

Correct option is

[Ni(NH₃)₆]²⁺

(a) Fe (0) = 3d⁶4s². CO is a strong field ligand and hence forces 4s²electrons to shift and pair up into 3d. Thus, dsp³ geometry and n = 0.

(b) Cr (0) : 3d⁵4s¹ → 3d⁶ (under the influence of strong ligand CO; d²sp³hybridization (n = 0)

(c) Fe (II) : 3d⁶; d²sp³ hybridization (CN^– – strong ligand), n = 0

(d) Ni (II) : 3d⁸; sp³d² complex (no availability of two vacant 3d orbitals),n = 2

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SIMILAR QUESTIONS

Q1

The aqueous 0.01 m of [Co(NH_3/6]₂[Co(NH₃)(NO₂)₅]₃ is expected to have the depression of freezing point (K_f for water = 1.86 K/m)

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Q2

Ethylenediaminetetraacetic acid (EDTA) is the antidote for lead poisoning. It is administered in the form of

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Q3

Which of the following ions are expected to be paramagnetic to the same extent?

I. [FeF₆]^3– II. [MnCl₄]^2–

III. [NiCl₄]^2–

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Q4

Which of the following is an outer orbital complex?

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Q5

The most stable ions is

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Q6

Which of the following has the largest number of isomers?

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Q7

The number of geometric isomer of the complex Cr(NH₃)₃Cl₃ is

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Q8

A coordination complex having which one of the following descriptions would be paramagnetic to the maximum extent?

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Q9

Consider the complex : K₃[Co(C₂O₄)₂Cl₂]

The coordination number, the oxidation number of Co and the number of unpaired electrons on the metal are respectively

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Q10

Arrange the following in the increasing order of paramagnetism :

I: [Fe(H₂O)₆]Cl₃

II: K₄[Fe(CN)₆]

III: K₃[Fe(CN)₆]

IV: [Fe(H₂O)₆]SO₄.H₂O

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