Multiple Choice Questions (MCQs) for NEET Chemistry: Coordination Compounds
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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+
Multiple Choice Questions (MCQs) for NEET Chemistry Coordination Compounds
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FAQs
You can get most exhaustive NEET Chemistry Coordination Compounds MCQs Set 01 for free on StudiesToday.com. These MCQs for NEET Chemistry are updated for the 2026-27 academic session as per NEET examination standards.
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