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MCQ for Full Syllabus Chemistry Coordination Compounds
Full Syllabus Chemistry students should review the 50 questions and answers to strengthen understanding of core concepts in Coordination Compounds
Coordination Compounds MCQ Questions Full Syllabus Chemistry with Answers
Question: CFSE(Δ0) for metal ion in d7 configuration in presence of strong ligand field is
- a) –0.6 Δ0
- b) –0.8 Δ0
- c) –1.6 Δ0
- d) –1.8 Δ0
Answer: –1.8 Δ0
Question: Which octahedral coordination compound will show maximum conductivity in aqueous solution if all NH3 act as ligands?
- a) CoCl3.6NH3
- b) CoCl3.5NH3
- c) CoCl3.4NH3
- d) All will have same conductivity as every compound has got 3Cl
Answer: CoCl3.6NH3
Question: In case of high spin situation
- a) Δ0= P
- b) Δ0> P
- c) Δ0< P
- d) Δ0.P = 1
Answer: Δ0< P
Question: The name of complex ion, [Fe(CN)6]3– is
- a) Tricyanoferrate (III) ion
- b) Hexacyanidoferrate (III) ion
- c) Hexacyanoiron (III) ion
- d) Hexacyanitoferrate (III) ion
Answer: Hexacyanidoferrate (III) ion
Question: Which is a diamagnetic complex?
- a) [Fe(H2O)6]3+
- b) [Fe(H2O)6]2+
- c) [Fe(CN)6]3–
- d) [Fe(CN)6]4–
Answer: [Fe(CN)6]4–
Question: Number of possible isomers for the complex [Co(en)2Cl2]Cl will be (en = ethylenediamine)
- a) 3
- b) 4
- c) 2
- d) 1
Answer: 3
Question: The hybridization involved in complex [Ni(CN)4]2– is (At. No. Ni = 28)
- a) d2sp2
- b) d2sp3
- c) dsp2
- d) sp3
Answer: dsp2
Question: 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) 7
- b) 8
- c) 9
- d) 6
Answer: 9
Question: Magnetic moment 2.84 B.M. is given by (At. nos, Ni = 28, Ti = 22, Cr = 24, Co = 27)
- a) Co2+
- b) Ni2+
- c) Ti3+
- d) Cr2+
Answer: Ni2+
Question: Cobalt(III) chloride forms several octahedral complexes with ammonia. Which of the following will not give test for chloride ions with silver nitrate at 25°C?
- a) CoCl3.6NH3
- b) CoCl3.3NH3
- c) CoCl3.4NH3
- d) CoCl3.5NH3
Answer: CoCl3.3NH3
More Questions.......................................................
Question: A magnetic moment of 1.73 BM will be shown by one among the following
- a) [Ni(CN)4]2–
- b) TiCl4
- c) [CoCl6]4–
- d) [Cu(NH3)4]2+
Answer: [Cu(NH3)4]2+
Question: Which of these statements about [Co(CN)6]3– is true?
- a) [Co(CN)6]3– has no unpaired electrons and will be in a high-spin configuration
- b) [Co(CN)6]3– has no unpaired electrons and will be in a low-spin configuration
- c) [Co(CN)6]3– has four unpaired electrons and will be in a low-spin configuration
- d) [Co(CN)6]3– has four unpaired electrons and will be in a high-spin configuration
Answer: [Co(CN)6]3– has no unpaired electrons and will be in a low-spin configuration
Question: Among the following complexes the one which shows zero crystal field stabilization energy (CFSE) is
- a) [Mn(H2O)6]3+
- b) [Fe(H2O)6]3+
- c) [Co(H2O)6]2+
- d) [Co(H2O)6]3+
Answer: [Fe(H2O)6]3+
Question: Which of the following complexes is used to be as an anticancer agent?
- a) mer - [Co(NH3)3Cl3]
- b) cis - [PtCl2(NH3)2]
- c) cis - K2[PtCl2Br2]
- d) Na2CoCl4
Answer: cis - [PtCl2(NH3)2]
Question: An excess of AgNO3 is added to 100mL of a 0.01M solution of dichlorotetraaquachromium(III) chloride. The number of moles of AgCl precipitated would be
- a) 0.002
- b) 0.003
- c) 0.01
- d) 0.001
Answer: 0.001
Question: Red precipitate is obtained when ethanol solution of dimethylglyoxime is added to ammoniacal Ni(II). Which of thefollowing statements is not true ?
- a) Red complex has a square planar geometry
- b) Complex has symmetrical H-bonding
- c) Red complex has a tetrahedral geometry
- d) Dimethylglyoxime functions as bidentate ligand
Answer: Red complex has a tetrahedral geometry
Question: Which one of the following is an outer orbital complex and exhibits paramagnetic behaviour ?
- a) [Cr(NH3)6]3+
- b) [Co(NH3)6]3+
- c) [Ni(NH3)6]2+
- d) [Zn(NH3)6]2+
Answer: [Ni(NH3)6]2+
Question: The complex, [Pt (Py) (NH3) Br Cl] will have how many geometrical isomers?
- a) 2
- b) 3
- c) 4
- d) 0
Answer: 3
Question: Low spin complex of d6–cation in an octahedal field will have the following energy (Δo= crystal field splitting energy in an octahedral field, P = electron pairing energy)
- a)
- b)
- c)
- d)
Answer:
Question: The complexes [Co(NH3)6][Cr (CN)6] and [Cr (NH3)6] [Co(CN)6] are the examples of which type of isomerism?
- a) Geometrical isomerism
- b) Linkage isomerism
- c) Ionization isomerism
- d) Coordination isomerism
Answer: Coordination isomerism
Question: The d-electron configurations of Cr2+, Mn2+, Fe2+ and Co2+ are d4, d5, d6 and d7 respectively. Which one of the following will exhibit minimum paramagnetic behaviour? (At. Nos. Cr = 24, Mn = 25, Fe = 26, Co = 27)
- a) [Cr (H2O)6]2+
- b) [Mn (H2O)6]2+
- c) [Fe (H2O)6]2+
- d) [Co(H2O)6]2+
Answer: [Co(H2O)6]2+
Question: Of the following complex ions, which is diamagnetic in nature?
- a) [Co F6]3–
- b) [Ni Cl4]2–
- c) [Ni (CN)4]2–
- d) [Cu Cl4]2–
Answer: [Ni (CN)4]2–
Question: Which of the following carbonyls will have the strongest C – O bond ?
- a) V(CO)6–
- b) Fe(CO)5
- c) Mn(CO)6+
- d) Cr(CO)6
Answer: Mn(CO)6+
Question: Which of the following complex compounds will exhibit highest paramagnetic behaviour ? (At. no. Ti = 22, Cr = 24,Co = 27, Zn = 30)
- a) [Co(NH3)6]3+
- b) [Zn(NH3)6]2+
- c) [Ti(NH3)6]3+
- d) [Cr(NH3)6]3+
Answer: [Cr(NH3)6]3+
Question: Crystal field stabilization energy for high spin d4 octahedral complex is
- a) –1.8 Δ0
- b) –1.6 Δ0+P
- c) –1.2 Δ0
- d) –0.6 Δ0
Answer: –0.6 Δ0
Question: The existence of two different coloured complexes with the composition of [Co(NH3)4Cl2] + is due to
- a) Linkage isomerism
- b) Geometrical isomerism
- c) Coordination isomerism
- d) Ionization isomerism
Answer: Geometrical isomerism
Question: Which of the following complex ion is not expected to absorb visible light ?
- a) [Ni(CN)4]2–
- b) [Cr(NH3)6]+3
- c) [Fe(H2O)6]2+
- d) [Ni(H2O)6]2+
Answer: [Ni(CN)4]2–
Question: Which one of the following complexes is not expected to exhibit isomerism ?
- a) [Ni(NH3)4(H2O)2]2+
- b) [Pt (NH3)2Cl2]
- c) [Ni (NH3)2Cl2]
- d) [Ni(en)3]2+
Answer: [Ni (NH3)2Cl2]
Question: Which of the following does not show optical isomeism ?
- a) [Co(NH3)3Cl3]0
- b) [Co(en)Cl2(NH3)2]+
- c) [Co(en)3]3+
- d) [Co(en)2Cl2]+ (en=ethylenediamine)
Answer: [Co(NH3)3Cl3]0
Question: Which of the following complex ions is expected to absorb visible light ? (At. No. Zn=30, SC=21, Ti = 22, Cr = 24)
- a) [Ti(en)2(NH3)2]4+
- b) [Cr(NH3)6]3+
- c) [Zn(NH3)6]2+
- d) [Sc(H2O)3(NH3)3]3+
Answer: [Cr(NH3)6]3+
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MCQs for Coordination Compounds Chemistry Full Syllabus
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Coordination Compounds NCERT Based Objective Questions
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