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MCQ Questions for Class 12 Chemistry Chapter 9 Coordination Compounds with Answers

September 5, 2020 by Prasanna

Check the below NCERT MCQ Questions for Class 12 Chemistry Chapter 9 Coordination Compounds with Answers Pdf free download. MCQ Questions for Class 12 Chemistry with Answers were prepared based on the latest exam pattern. We have provided Coordination Compounds Class 12 Chemistry MCQs Questions with Answers to help students understand the concept very well.

Coordination Compounds Class 12 MCQs Questions with Answers

Question 1.
K2[Fe(CN)6] is a/an
(a) double salt
(b) complex salt
(c) acid
(d) base

Answer

Answer: (b) complex salt


Question 2.
Which of the following compounds has tetrahedral geometry?
(a) [Ni(CN)4]2-
(b) [Pd(CN)4]2-
(c [PdCl4]2-
(d) [NiCl4]2-

Answer

Answer: (d) [NiCl4]2-


Question 3.
The number of possible isomers for the complex
|Co(C2O4)2 (NH3)2|
(a) 1
(b) 2
(c) 3
(d) 4

Answer

Answer: (b) 2


Question 4.
The oxidation state of nickel in |(Ni(CO4)| is
(a) 1
(b) 4
(c) 2
(d) 3

Answer

Answer: (b) 4


Question 5.
According to Werner’s theory of coordination compounds
(a) Primary valency is ion isable
(b) Secondary valency is ionisable
(c) Primary and secondary valencies are lonisable
(d) Neither primary nor secondary valency ¡s ionisable

Answer

Answer: (a) Primary valency is ion isable


Question 6.
Ammonia acts as a very good ligand but ammonium ion does not form complexes because
(a) NH3 isa gas while NH\(_{4}^{+}\) is in liquid form.
(b) NH3 undergoes sp3 hybridisatiort while NH\(_{4}^{+}\) undergoes sp3 d hybndisation
(c) NH\(_{4}^{+}\) ion does not have any lone pair of electrons
(d) NH\(_{4}^{+}\) ion has one unpaired electron while NH3 has two unpaired electrons

Answer

Answer: (c) NH\(_{4}^{+}\) ion does not have any lone pair of electrons


Question 7.
The ligand N(CH2CH2NH2) is
(a) bidentate
(b) tridentate
(c) tetradentate
(d) pentadentate

Answer

Answer: (c) tetradentate


Question 8.
Which of the following is a tridentate ligand?
(a) EDTA4+
(b) (COO)\(_{2}^{2-}\)
(c) dien
(d) NO\(_{2}^{-}\)

Answer

Answer: (c) dien


Question 9.
Among the following which arc ambidentate ligands?
(i) SCN–
(ii) NO\(_{3}^{-}\)
(iii) NO\(_{2}^{-}\)
(iv) C2O\(_{4}^{2-}\)
(a) (i) and (iii)
(b) (i) and (iv)
(c) (ii) and (iii)
(d) (ii) and (iv)

Answer

Answer: (a) (i) and (iii)


Question 10.
Which of the following ligands form a chelate?
(a) Acetate
(b) Oxalate
(c) Cyanide
(d) Ammonia

Answer

Answer: (b) Oxalate


Question 11.
Which of the following is not a neutral ligand?
(a) H2O
(b) NH3
(c) ONO
(d) CO2

Answer

Answer: (c) ONO


Question 12.
Which of the following ligands will not show chelation?
(a) EDTA
(b) DMG
(c) Ethene-1, 2-diamine
(d) SCN–

Answer

Answer: (d) SCN–


Question 13.
The complex ion which has no d-electrons in the central metal atom is
(a) [MnO4]–
(b) [Co(NH3)6]3-
(c) [Fe(CN)6]3-
(d) [Cr(H2O)6]3+

Answer

Answer: (a) [MnO4]–


Question 14.
The correct IUPAC name of the coordination compound K3|Fe(CN)5NO| is
(a) Potassium pentacyanonitrosylferrate (II)
(b) Potassium pentacyanonitroferrate (II)
(c) Potassium nitritopentacyanoferrate (IV)
(d) Potassium nitritepentacynanoiron (II)

Answer

Answer: (a) Potassium pentacyanonitrosylferrate (II)


Question 15.
The correct IUPAC name of the following compound is |Cr(NH3)5(NCS)||ZnCl4|
(a) Penta amine isothiocyanato chromium (III) tetrachlorozincate (II)
(b) Penta amine isothicocyanatezinc chloridechromate (III)
(c) Penta amine isothicoyanato chromate (II)
(d) isothiocyanatopenta amine chromium (II) zinc chloride (IV)

Answer

Answer: (a) Penta amine isothiocyanato chromium (III) tetrachlorozincate (II)


Question 16.
Correct formulae of tetraaminechloronitroplatinum (IV) sulphate can be written as
(a) [Pt(NH3)4 (ONO) Cl]SO4
(b) [Pt(NH3)4Cl2NO2]2
(c) [Pt(NH3)4 (NO2) Cl]SO4
(d) [PtCl(ONO)NH3(SO4)]

Answer

Answer: (c) [Pt(NH3)4 (NO2) Cl]SO4


Question 17.
Which of the following isomers will give white precipitate with BaCl2 solution?
(a) [CO(NH3)5SO4]Br
(b) [CO(NH3)5Br]SO4
(c) [CO(NH3)4(SO4)2]Br
(d) [CO(NH3)4(SO4)]

Answer

Answer: (c) [CO(NH3)4(SO4)2]Br


Question 18.
|Pt(NH3)4| |CuCl4| and |Cu(NH3)4||PtCl4| are known as
(a) ionisation isomers.
(b) coordination isomers
(c) linkage isomers
(d) polymerisation isomers

Answer

Answer: (b) coordination isomers


Question 19.
The name of the linkage isomer of |C0(NH3)5NO2|Cl2 will be
(a) pentaammonotrocobalt (II) chloride
(b) pentaaminenitrochloridecobaltate (III)
(c) pentaamminenitritocobalt (III) chloride
(d) pentanitrosoamminechlorocobaltate(III)

Answer

Answer: (c) pentaamminenitritocobalt (III) chloride


Question 20.
Which of the following complex species is not expected to exhibit optical isomerism?
(a) [Co(en) (NH3)2Cl2]+
(b) [Co(en)3]3+
(c)[Co(en)2Cl2]
(d) [Co(NH3)3Cl3]

Answer

Answer: (d) [Co(NH3)3Cl3]


Question 21.
Which of the following compounds exhibits linkage isomerism?
(a) [Co(en)3]Cl3
(b) [Co(NH3)6] [Cr(en)3]
(c) [Co(en)2(NO2)CI]Br
(d) [Co(NH3)5CI]Br2

Answer

Answer: (c) [Co(en)2(NO2)CI]Br


Question 22.
Which of the following will not show geometrical isomerism?
(a) [Cr(NH3)4Cl2]Cl
(b) [Co(en)2Cl2]Cl
(c) [(Co(NH3)5NO2]Cl2
(d) [Pt(NH3)2Cl2]

Answer

Answer: (c) (Co(NH3)5NO2]Cl2


Question 23.
Which of the following shows maximum number of isomers?
(a) [Cr(NH3)4Cl2]
(b) [Ni(en)NH3]2+
(c) [Ni(C2O4] (en)2]2+
(d) [Cr(SCN)2(NH3)4]+

Answer

Answer: (d) [Cr(SCN)2(NH3)4]+


Question 24.
For the square planar complex |Mabcd| where M is the central atom and a, b. c, d are monodentate ligands, the number of possible geometrical isomers are
(a) 1
(b) 2
(c) 3
(d) 4

Answer

Answer: (c) 3


Question 25.
The hybridisation involved in [Co(C2O4)3]3- is
(a) sp3d2
(b) sp3d3
(c) dsp3
(d) d2sp3

Answer

Answer: (d) d2sp3


We hope the given NCERT MCQ Questions for Class 12 Chemistry Chapter 9 Coordination Compounds with Answers Pdf free download will help you. If you have any queries regarding Coordination Compounds CBSE Class 12 Chemistry MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon.

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