Isomerism in Coordination Compounds CSIR NET, GATE MCQ - Download PDF

This is seventh mcq assignment on coordination compounds in which you will find CSIR NET & GATE previous year questions on topic Isomerism in Coordination Compounds. You can attempt this assignment as a quiz or can download it as a pdf file. 

    

Questions

Question 1. The number of stereoisomers possible for complex [CoCl₂(triethylenetetramine)]Br is
[NET Dec 2014]
(a) 1
(b) 2
(c) 3
(d) 4

Question 2. The complexes [Co(H₂O)₄Cl₂]NO₂ and [Co(H₂O)₄Cl(NO₂)]Cl
(a) linkage isomers
(b) positional isomers
(c) ionization isomers
(d) optical isomers

Question 3. NiBr₂ reacts with EtPh₂P at -78^oC in CS₂ to give a red compound ‘A’, which upon standing at room temperature turns green to give compound, ‘B’ of the same formula. The measured magnetic moments of ‘A’ and ‘B’ are 0.0 and 3.2 BM, respectively. The geometries of ‘A’ and ‘B’ are
[NET June 2014]
(a) Square planer and tetrahedral
(b) Tetrahedral and square planer
(c) Square planer and octahedral
(d) Tetrahedral and octahedral

Question 4. The reaction of [PtCl₄]^2- with two equivalents of NH₃ produces
[NET June 2013]
(a) cis-[Pt(NH₃)₂Cl₂]
(b) trans-[Pt(NH₃)₂Cl₂]
(c) both cis-[Pt(NH₃)₂Cl₂] and trans-[Pt(NH₃)₂Cl₂]
(d) cis-[Pt(NH₃)₂Cl₂]^2-

Question 5. The number of possible isomers of [Ru(PPh₃)₂(acac)₂] (acac = acetylacetone) is:
(a) 2
(b) 3
(c) 4
(d) 5

Question 6. Green colored Ni(PPh₂Et)₂Br₂, has a magnetic moment of 3.20 BM. The geometry and the number of isomers possible for the complex respectively, are
[NET Dec 2011]
(a) square Planer, one
(b) tetrahedral, one
(c) square planer, two
(d) tetrahedral, two

Question 7. The number of possible isomers for the square planer mononuclear complex [(NH₃)M(CN)₂] of a metal M is:
[GATE 2011]
(a) 2
(b) 4
(c) 3
(d) 6

Question 8. The number of possible isomers for [Ru(bpy)₂Cl₂] is (bpy = 2,2’-bipyridine)
[NET June 2011]
(a) 2
(b) 3
(c) 4
(d) 5

Question 9. The complex that exists as a pair of enantiomers is:
(a) trans-[Co(H₂NCH₂CH₂NH₂)₂Cl₂]⁺
(b) cis-[Co(NH₃)₄Cl₂]
(c) [Pt(PPh₃)(Cl)(Br)(CH₃)]^-
(d) [Co(H₂NCH₂CH₂NH₂)₃]³⁺

Question 10. The ligand that exhibits linkage isomerism in its transition metal complexes
(a) [SO₃]^2-
(b) [SO₄]^2-
(c) [NO₃]^-
(d) [ClO₄]^-

Answers

1.a 2.c 3.a 4.a 5.b 6.b 7.a 8.b 9.d 10.a