Optical Isomerism Questions:

In coordination compound [Co(en)₂Cl₂]Cl which is false
(a) Show geometrical Isomerism
(b) Show optical Isomerism
(c) Show ionic Isomerism
(d) A octahedral complex

Ans. (c)

[Co(NH₃)₄Cl₂]⁺ exhibits
(a) Geometrical isomerism
(b) Optical isomerism
(c) Bonding isomerism
(d) Ionisation isomerism

Ans. (a)

The number of unpaired electrons in Ni(CO)₄ is
(a) Zero
(b) One
(c) Three
(d) Five

Ans. (a)

The possible number of optical isomers in [Co(en)₂Cl₂]⁺ are
(a) 2
(b) 3
(c) 4
(d) 6

Ans. (b)

The colour of CoCl₃.5NH₃.H₂O is
(a) Orange yellow
(b) Orange
(c) Green
(d) Pink

Ans. (d)

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Paramagnetic co-ordination compounds contain …….. electrons
(a) No
(b) Both paired and unpaired
(c) Paired
(d) Unpaired

Ans. (d)

The type of magnetism exhibited by [Mn(H₂O)₆]²⁺ ion is
(a) Paramagnetism
(b) Diamagnetism
(c) Both (a) and (b)
(d) None of these

Ans. (a)

Coordination isomerism is caused by the interchange of ligands between the
(a) Cis and Trans structure
(b) Complex cation and complex anion
(c) Inner sphere and outer sphere
(d) Low oxidation and higher oxidation states

Ans. (a)

What is the magnetic moment of K₃[FeF₆]
(a) 5.91 BM
(b) 4.89 BM
(c) 3.87 BM
(d) 6.92 BM

Ans. (a)

[Co(NH₃)₅Br]SO₄ and [Co(NH₃)₅SO₄] are examples of which type of isomerism
(a) Linkage
(b) Geometrical
(c) Ionization
(d) Optical

Ans. (c)

Types of isomerism shown by [Cr(NH₃)₅NO₂]Cl₂ is
(a) Optical
(b) Ionisation
(c) Geometrical
(d) Linkage

Ans. (d)

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[Co(NH₃)₅NO₂]Cl₂ and [Co(NH₃)₅(ONO)]Cl₂ are related to each other as
(a) Geometrical isomers
(b) Optical isomers
(c) Linkage isomers
(d) Coordination isomers

Ans. (c)

If the magnetic moment of [Ag(CN)₂]^–1 is zero, then the number of unpaired electrons will be
(a) 1
(b) 2
(c) 3
(d) Zero

Ans. (d)

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Which one of the following octahedral complexes will not show geometric isomerism (A and B are monodentate ligands)
(a) [MA₅B]
(b) [MA₂B₄]
(c) [MA₃B₃]
(d) [MA₄B₂]

Ans. (a)

The complexes [Co(NH₃)₆][Cr(C₂O₄)₃] and [Cr(NH₃)₆][Co(C₂O₄)₃]
(a) Linkage isomerism
(b) Geometrical isomerism
(c) Coordination isomerism
(d) Ionisation isomerism

Ans. (c)

The number of geometrical isomers for [Pt(NH₃)₂Cl₂] is
(a) Two
(b) One
(c) Three
(d) Four

Ans. (a)

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The number of ions per mole of a complex [CoCl₂.5NH₃]Cl₂ in aqueous solution will be
(a) Nine
(b) Four
(c) Three
(d) Two

Ans. (c)

[Ti(H₂O)₆]⁺³ is paramagnetic in nature due to
(a) One unpaired e^–
(b) Two unpaired e^–(c) Three unpaired e^–
(d) No unpaired e^–

Ans. (a)

Which of the following coordiantion compounds would exhibit optical isomerism
(a) trans-dicyanobis (ethylenediamine) chromium (III) chloride
(b) tris-(ethylenediamine) cobalt (III) bromide
(c) pentaamminenitrocobalt (III) iodide
(d) diamminedichloroplatinum (II)

Ans. (b)

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How many ions will be produced in solution from one molecule of chloropentammine cobalt (III) chloride
(a) 1
(b) 2
(c) 3
(d) 4

Ans. (c)

The pair of complex compounds [Cr(H₂O)₆Cl₃] and [Cr(H₂O)₅Cl]Cl₂H₂O are an example of
(a) Linkage isomerism
(b) Ionisation isomerism
(c) Coordination isomerism
(d) Hydrate isomerism

Ans. (d)

[Pt(NH₃)₄Cl₂]Br₂ and [Pt(NH₃)₄Br₂]Cl₂ are related to each other as
(a) Optical isomers
(b) Coordinate isomers
(c) Ionization isomers
(d) Linkage isomers

Ans. (c)

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What is true for [Fe(CN)₆]^3–and [FeF₆]^3–(a) Both are paramagnetic
(b) Only [Fe(CN)₆]^3–is paramagnetic
(c) Only [FeF₆]^3–is paramagnetic
(d) Both are diamagnetic