NEET Chemistry Coordination Compounds MCQs Set 03

Download NEET MCQs for NEET Chemistry: Coordination Compounds

Review structured MCQ sets for NEET Chemistry Coordination Compounds. Built according to official NEET guidelines, these downloadable questions support daily revision and core concept reinforcement.

Chapter-wise Objective Questions: Coordination Compounds

Access the complete set of multiple-choice questions for Coordination Compounds below. This focused format allows students to isolate specific topics for thorough review and uninterrupted practice alongside official NEET textbooks.

 

Question: Which of the following complexes exhibits the highest paramagnetic behaviour ? (Where gly = glycine,en = ethylenediamine and bpy = bipyridyl moities). (At. number Ti = 22, V = 23, Fe = 26, Co = 27)

  • a) [Ti(NH3)6]3+ 
  • b) [V(gly)2(OH)2(NH3)2]+
  • c) [Fe(en)(bpy)(NH3)2]2+ 
  • d) [Co(OX)2(OH)2]

Answer:  [Co(OX)2(OH)2]

 

Question:  In which of the following coordination entities the magnitude of Δo(CFSE in octahedral field) will be maximum (at.no. Co = 27)? 

  • a) [Co(C2O4)3]3–
  • b) [Co(H2O)6]3+
  • c) [Co(NH3)6]3+
  • d) [Co(CN)6]3–

Answer:  [Co(CN)6]3–

 

Question: Which one of the following aqua complexes will exhibit the minimum paramagnetic behaviour? Atomic number.Cr = 24, Mn = 25, Fe = 26, Ni = 28)

  • a) [Cr(H2O)6]2+  
  • b) [Mn(H2O)6]2+
  • c) [Fe(H2O)6]2+
  • d) [Ni(H2O)6]2+

Answer:  [Ni(H2O)6]2+

 

Question: Which of the following will give a pair of enantiomorphs?

  • a) [Pt(NH3)4][PtCl6]
  • b) [Co(NH3)4Cl2]NO2
  • c) [Cr(NH3)6][Co(CN)6
  • d) [Co(en)2Cl2]Cl (en = NH2CH2CH2NH2)

Answer:  [Co(en)2Cl2]Cl (en = NH2CH2CH2NH2)

 

Question:  [Co(NH3)4(NO2)2]Cl exhibits 

  • a) Linkage isomerism, ionization isomerism and optical isomerism
  • b) Linkage isomerism, ionization isomerism and geometrical isomerism
  • c) Ionization isomerism, geometrical isomerism and optical isomerism
  • d) Linkage isomerism, geometrical isomerism and optical isomerism

Answer: Linkage isomerism, ionization isomerism and geometrical isomerism

 

Question:  [Cr(H2O)6]Cl3(at. no of Cr = 24) has a magnetic moment of 3.83 BM, the correct distribution of 3d electrons in the chromium of the complex is 

  • a)

    NEET Chemistry Coordination Compounds Online Test Set D-Q30-1

  • b)

    NEET Chemistry Coordination Compounds Online Test Set D-Q30-2

  • c)

    NEET Chemistry Coordination Compounds Online Test Set D-Q30-3

  • d)

    NEET Chemistry Coordination Compounds Online Test Set D-Q30-4

Answer:

NEET Chemistry Coordination Compounds Online Test Set D-Q30-3

 

Question: Which one of the following is an inner orbital complex as well as diamagnetic in behaviour? (Atomic No. : Zn = 30,Cr = 24, Co = 27, Ni = 28)

  • a) [Zn(NH3)6]2+
  • b) [Cr(NH3)6]3+
  • c) [Co(NH3)6]3+ 
  • d) [Ni(NH3)6]2+

Answer:  [Co(NH3)6]3+ 

 

Question: Which one of the following is expected to exhibit optical isomerism ? (en = ethylenediamine)

  • a) cis -[Pt (NH3)2Cl2
  • b) trans -[Co (en)2Cl2]
  • c) trans -[Pt (NH3)2Cl2
  • d) cis -[Co(en)2Cl2]

Answer: trans -[Co (en)2Cl2]

 

Question:  A co-ordination complex compound of cobalt has the molecular formula containing five ammonia molecules,one nitro group and two chlorine atoms for one cobalt atom. One mole of this compound produces three mole ions in an aqueous solution. On reacting this solution with excess of AgNO3 solution, we get two moles of AgCl as precipitate. The ionic formula for this complex would be

  • a) [Co(NH3)5(NO2)] Cl2 
  • b) [Co(NH3)5Cl] [Cl(NO2)]
  • c) [Co(NH3)4(NO2)Cl] (NH2) Cl 
  • d) [Co(NH3)5] [ (NO2)2Cl2]

Answer:  [Co(NH3)5(NO2)] Cl2 

 

Question:  Shape of Fe(CO)5 is

  • a) Octahedral
  • b) Square planar
  • c) Trigonal bipyramidal
  • d) Square pyramidal

Answer: Trigonal bipyramidal

 

More Questions.....................................

 

Question: IUPAC name of [Pt(NH3)3(Br) (NO2)Cl] Cl is

  • a) Triamminebromochloronitroplatinum (IV) chloride
  • b) Triamminebromonitrochloroplatinum (IV) chloride
  • c) Triamminechlorobromonitroplatinum (IV) chloride
  • d) Triamminenitrochlorobromoplatinum (IV) chloride

Answer: Triamminebromochloronitroplatinum (IV) chloride

 

Question: Which of the following will give maximum number of isomers?

  • a) [Co(NH3)4Cl2]
  • b) [Ni(en) (NH3)4]2+
  • c) [Ni (C2O4) (en)2]2–  
  • d) [Cr (SCN)2(NH3)4]+

Answer:  [Cr (SCN)2(NH3)4]+

 

Question: Coordination number of Ni in [Ni (C2O4)3]4– is

  • a) 3
  • b) 6
  • c) 4
  • d) 2

Answer: 6

 

Question: Shape of Fe(CO)5 is

  • a) Octahedral
  • b) Square planar
  • c) Trigonal bipyramidal
  • d) Square pyramidal

Answer: Trigonal bipyramidal

 

Question: Which one of the following is expected to exhibit optical isomerism ? (en = ethylenediamine)

  • a) cis -[Pt (NH3)2Cl2]
  • b) trans -[Co (en)2Cl2]
  • c) trans -[Pt (NH3)2Cl2]  
  • d) cis -[Co(en)2Cl2]

Answer:  trans -[Co (en)2Cl2]

 

Question:  The number of unpaired electrons in the complex ion [CoF6]3– is (Atomic no. : Co = 27)

  • a) 2
  • b) 3
  • c) 4
  • d) Zero

Answer: 4

 

Question: Atomic number of Cr and Fe are respectively 24 and 26, which of the following is paramagnetic?

  • a) [Cr(CO)6
  • b) [Fe(CO)5]
  • c) [Fe(CN)6]4–  
  • d) [Cr(NH3)6]3+

Answer:  [Cr(NH3)6]3+

 

Question: According to IUPAC nomenclature sodium nitroprusside is named as

  • a) Sodium nitroferricyanide
  • b) Sodium nitroferrocyanide
  • c) Sodium pentacyanonitrosyl ferrate (II)
  • d) Sodium pentancyanonitrosyl ferrate (III)

Answer: Sodium pentacyanonitrosyl ferrate (II)

 

Question:  The anion of acetylacetone (acac) forms Co(acac)3 chelate with Co3+. The rings of the chelate are

  • a) Three membered
  • b) Five membered
  • c) Four membered
  • d) Six membered

Answer: Six membered

 

Question: Which of the following coordination compounds would exhibit optical isomerism?

  • a) Pentaamminenitrocobalt (III) iodide
  • b) Diamminedichloroplatinum (II)
  • c) Trans dicyanobis (ethylenediamine) chromium (III) chloride
  • d) Tris-(ethylenediamine) cobalt (III) bromide

Answer: Tris-(ethylenediamine) cobalt (III) bromide

 

Question: Which one of the following octahedral complexes will not show geometric isomerism? (A and B are monodentate ligands)

  • a) [MA2B4
  • b) [MA3B3]
  • c) [MA4B2
  • d) [MA5B]

Answer:  [MA5B]

 

Question: Atomic number of Cr and Fe are respectively 24 and 26, which of the following is paramagnetic?

  • a) [Cr(CO)6]   
  • b) [Fe(CO)5]
  • c) [Fe(CN)6]4– 
  • d) [Cr(NH3)6]3+

Answer: [Cr(NH3)6]3+

 

Question: Which of the following is not bidentate ligand?

  • a) acac
  • b) ox
  • c) en
  • d) dien

Answer: dien

 

Question: Which one of the following is an inner orbital complex as well as diamagnetic in behaviour? (Atomic No. : Zn = 30,Cr = 24, Co = 27, Ni = 28)

  • a) [Zn(NH3)6]2+ 
  • b) [Cr(NH3)6]3+
  • c) [Co(NH3)6]3+   
  • d) [Ni(NH3)6]2+

Answer:  [Co(NH3)6]3+   

 

Question:  The d electron configuration of Cr2+, Mn2+, Fe2+ and Ni2+ are 3d4, 3d5, 3d6 and 3d8 respectively. Which one of the following aqua complexes will exhibit the maximum paramagnetic behaviour? (At. No. Cr = 24, Mn = 25, Fe = 26,Ni = 28)

  • a) [Fe(H2O)6]2+  
  • b) [Ni(H2O)6]2+
  • c) [Cr(H2O)6]2+ 
  • d) [Mn(H2O)6]2+

Answer:  [Mn(H2O)6]2+

 

Question: Number of geometrical isomers possible for [MABCDEF] is

  • a) 6
  • b) 10
  • c) 15
  • d) 12

Answer: 15

 

Question: Which statement is incorrect?

  • a) Ni(CO)4- tetrahedral, paramagnetic 
  • b) Ni(CN)4–2 - square planar, diamagnetic
  • c) Ni(CO)4– tetrahedral, diamagnetic  
  • d) [Ni(Cl)4]–2 – tetrahedral, paramagnetic

Answer:  Ni(CO)4- tetrahedral, paramagnetic 

 

Question:   A co-ordination complex compound of cobalt has the molecular formula containing five ammonia molecules,one nitro group and two chlorine atoms for one cobalt atom. One mole of this compound produces three mole ions in an aqueous solution. On reacting this solution with excess of AgNO3 solution, we get two moles of AgCl as precipitate. The ionic formula for this complex would be

  • a) [Co(NH3)5(NO2)] Cl2 
  • b) [Co(NH3)5Cl] [Cl(NO2)]
  • c)  [Co(NH3)4(NO2)Cl] (NH2) Cl 
  • d) [Co(NH3)5] [ (NO2)2Cl2]

Answer:  [Co(NH3)5(NO2)] Cl2 

 

Question: Stability of the complex depends on

  • a) Oxidation state
  • b) Nature of ligand
  • c) Geometry of complex
  • d) All of these

Answer: All of these

 

Question: Which of the following is not organometallic complex?

  • a) Grignard reagent
  • b) Ferrocene
  • c) Trans-platin
  • d) Diethyl zinc

Answer: Trans-platin

Practice MCQs for NEET Chemistry Coordination Compounds

NEET Chemistry Coordination Compounds Objective Test Questions

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