Class 12 Chemistry Chapter 9 Coordination Compounds MCQs | Class 12 Chemistry Chapter 9 Coordination Compounds Multiple Choice Questions (MCQs) and Answers

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Questions
1 Some salts containing two different metallic elements give test for only one of them in solution, such salts are
A double salts
B normal salts
C complex salts
D None of these

Answer:complex salts
2 An example of a sigma bonded organometallic compound is
A Grignard reagent
B Ferrocene
C Cobaltocene
D Ruthenocene

Answer:Grignard reagent
3 Iron carbonyl, Fe(CO)5 is
A Tetranuclear
B Mononuclear
C Dinuclear
D Trinuclear

Answer: Mononuclear
4 The type of isomerism shown by the complex [CoCl2(en)2] is
A Geometrical isomerism
B Coordination isomerism
C Linkage isomerism
D Ionization isomerism

Answer:Geometrical isomerism
5 Which of the following elements do not form a complex with EDTA?
A Ca
B Mg
C Be
D Sr

Answer:Be
6 When 0.1 mol CoCl3(NH3)5 is combined with excess AgNO3, then 0.2 mol AgCl is obtained. The conductivity of the solution suits the
A 1:3 electrolyte
B 1:1 electrolyte
C 3:1 electrolyte
D 1:2 electrolyte

Answer:1:2 electrolyte
7 A chelating agent has two or more than two donor atoms to bind to a single metal ion. Which of the following is not a chelating agent?
A Thiosulphato
B Oxalato
C Glycinato
D Ethane-1,2-diamine

Answer:Thiosulphato
8 IUPAC name of [Pt(NH3)2Cl(NO2)] is
A Platinum diamminechloronitrite
B Chloronitrito-N-ammineplatinum (II)
C Diamminechloridonitrito-N-platinum (II)
D Diamminechloronitrito-N-plantinate (II)

Answer:Diamminechloridonitrito-N-platinum (II)
9 In the complex [E(en)2(C2O4)]NO2 (where (en) is ethylenediamine) _______are the coordination number and the oxidation state of the element ‘E’ respectively.
A 6 and 2
B 2 and 2
C 4 and 3
D 6 and 3

Answer:6 and 3
10 The sum of coordination number and oxidation number of the metal M in the complex [M(en)2(C2O4)]Cl (where (en) is ethylenediamine) is
A 9
B 6
C 7
D 8

Answer:9
11 IUPAC name of [Pt(NH3)3 Br (NO2) Cl] Cl isw
A triamminechlorodibromidoplatinum (IV) chloride
B triamminechloridobromidonitrochloride- platinum (IV) chloride
C triamminebromidochloridonitroplatinum (IV) chloride
D triamminenitrochlorobromoplatinum (IV) chloride

Answer:triamminebromidochloridonitroplatinum (IV) chloride
12 Trunbull’s blue is
A Ferricyanide
B Ferrous ferricyanide
C Ferrous cyanide
D Fe3[Fe(CN)6]4

Answer:Ferrous ferricyanide
13 Primary and secondary valency of Pt in [Pt(en)2Cl2] are
A 4, 4
B 4, 6
C 6, 4
D 2, 6

Answer:2, 6
14 The complex ions [Co(NH3)5(NO2)]2+ and [Co(NH3)5 (ONO)]2+ are called
A Ionization isomers
B Linkage isomers
C Co-ordination isomers
D Geometrical isomers

Answer: Linkage isomers
15 Which of the following has square planar structure?
A [NiCl4]2-
B [Ni(CO)4]
C [Ni(CN)4]2-
D None of these

Answer:[Ni(CN)4]2-
16 Which of the following has magnesium?
A Chlorophll
B Haemocyanin
C Carbonic anhydrate
D Vitamin B12

Answer: Chlorophll
17 Mohr’s salt is
A Fe2(SO4) 3 .  (NH4)2SO4 . 6H2O
B FeSO4 . (NH4)2 . SO4 . 6H2O
C MgSO4 . 7H2O
D FeSO4 . 7H2O

Answer: FeSO4 . (NH4)2 . SO4 . 6H2O
18 Which of the following shall form an octahedral complex?
A d4 (low spin)
B d8 (high spin)
C d6 (low spin)
D All of these

Answer:d8 (high spin)
19 EDTA is used for the estimation of
A Na+ and K+ ions
B Cl– and Br– ions
C Cu2+ and Cs+ ions
D Ca2+ and Mg2+ ions

Answer:Ca2+ and Mg2+ ions
20 The solution of the complex [Cu(NH3)4] SO4 in water will
A give the tests of Cu2+ ion
B give the tests of NH3
C give the tests of SO42- ions
D not give the tests of any of the above

Answer: give the tests of SO42- ions

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