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Coordination Compounds

Previous year questions with solutions · 2000 – 2026

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101Questions
35Papers covered
8.89%Weightage 2026▲ 33.3% vs last year
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Year-wise statistics questions · papers · average per paper · weightage
YearQuestionsPapersAvg / paperWeightage
20268248.89% ▲ 33.3% vs last year
20253136.67% ▲ 12.2% vs last year
20246235.94% ▲ 51.5% vs last year
20232123.92% ▼ 1% vs last year
20224223.96% ▼ 1% vs last year
20212124.00% ▲ 80% vs last year
20201112.22% same as last year
20191112.22% ▼ 75% vs last year
20184148.89% same as last year
20174148.89% ▲ 166.7% vs last year
2016321.53.33% ▼ 50% vs last year
20156236.67% ▲ 50% vs last year
20142124.44% ▼ 50.6% vs last year
20138248.99% ▲ 139.7% vs last year
2012321.53.75% ▼ 62% vs last year
20118249.88% ▲ 97.5% vs last year
20104225.00% ▲ 27.5% vs last year
20092123.92% same as last year
20082123.92% ▼ 2% vs last year
20072124.00% same as last year
20062124.00% same as last year
20052124.00% ▼ 72.6% vs last year
200471714.58% ▲ 138.2% vs last year
20033136.12% ▼ 23.5% vs last year
20024148.00% ▼ 18.4% vs last year
20015159.80% ▲ 66.7% vs last year
20003135.88%

101 questions · newest paper first · page 4 of 4

Ques. 91AIPMT 2002

The hypothetical complex chloro diaquatriammine cobalt(III) chloride can be represented as

  1. [CoCl(NH3)3(H2O)2]Cl2
  2. [Co(NH3)3(H2O)Cl3]
  3. [Co(NH2)3(H2O)2Cl]
  4. [Co(NH3)3(H2O)3]Cl3
Ques. 92AIPMT 2002

In the silver plating of copper, K[Ag(CN)2] is used instead of AgNO3. The reason is

  1. a thin layer of Ag is formed on Cu
  2. more voltage is required
  3. Ag+ ions are completely removed from solution
  4. less availability of Ag+ ions, as Cu cannot displace Ag from [Ag(CN)2]- ion.
Ques. 93AIPMT 2002

CuSO4 when reacts with KCN forms CuCN, which is insoluble in water. It is soluble in excess of KCN, due to formation of the following complex

  1. K2[Cu(CN)4]
  2. K3[Cu(CN)4]
  3. CuCN2
  4. Cu[KCu(CN)4]
Ques. 94AIPMT 2001

Which of the following will give maximum number of isomers?

  1. [Co(NH3)4Cl2]
  2. [Ni(en)(NH3)4]2+
  3. [Ni(C2O4)(en)2]
  4. [Cr(SCN)2(NH3)4]+
Ques. 95AIPMT 2001

Coordination number of Ni in [Ni(C2O4)3]4- is

  1. 3
  2. 6
  3. 4
  4. 2
Ques. 96AIPMT 2001

Which of the following organometallic compounds is and bonded?

  1. [Fe( 5-C5H5)2]
  2. K[PtCl3( 2-C2H4)]
  3. [Co(CO)5NH3]2+
  4. Fe(CH3)3
Ques. 97AIPMT 2001

Which statement is incorrect?

  1. Ni(CO)4 – tetrahedral, paramagnetic
  2. [Ni(CN)4]2- – square planar, diamagnetic
  3. Ni(CO)4 – tetrahedral, diamagnetic
  4. [NiCl4]2- – tetrahedral, paramagnetic.
Ques. 98AIPMT 2001

Which of the following will exhibit maximum ionic conductivity?

  1. K4[Fe(CN)6]
  2. [Co(NH3)6]Cl3
  3. [Cu(NH3)4]Cl2
  4. [Ni(CO)4]
Ques. 99AIPMT 2000

In qualitative analysis of second group in laboratory, H2S gas is passed in acidic medium for precipitation. When Cu2+ and Cd2+ react with KCN, then for product, true statement is

  1. K2[Cu(CN)4] – more stable; K2[Cd(CN)4] – less stable
  2. K2[Cu(CN)4] – less stable; K2[Cd(CN)4] – more stable
  3. K3[Cu(CN)4] – more stable; K2[Cd(CN)4] – less stable
  4. K3[Cu(CN)4] – less stable; K3[Cd(CN)4] – more stable
Ques. 100AIPMT 2000

Shape of Fe(CO)5 is

  1. octahedral
  2. square planar
  3. trigonal bipyramidal
  4. square pyramidal
Ques. 101AIPMT 2000

Which complex compound will give four isomers?

  1. [Fe(en)3]Cl3
  2. [Co(en)(NH3)2Cl2]Cl
  3. [Fe(PPh3)3NH3ClBr]Cl
  4. [Co(PPh3)3Cl]Cl3