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Q. No.
The formula of tetraammineaquachloridocobalt(III) chloride is:
1. [Co(NH3)4(H2O)Cl]Cl2
2. [Co(NH3)4Cl2] × H2O
3. [Co(NH3)4]Cl3 × H2O
4. [Co(NH3)4(H2O)Cl]Cl
Subtopic:  Introduction, Classification and Nomenclature |
 82%
Level 1: 80%+
NEET - 2026
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In potash alum, the ratio of K+ and SO42- ions is:
1. 3:2
2. 1:2
3. 2:1
4. 2:3
Subtopic:  Introduction, Classification and Nomenclature |
 51%
Level 3: 35%-60%
NEET - 2026
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Out of the following complex compounds, which of the compounds will have the minimum conductance in solution?
a. \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right] \mathrm{Cl}_3 \) b. \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5 \mathrm{Cl}\right] \mathrm{Cl} \)
c. \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_3 \mathrm{Cl}_3\right] \) d. \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_4 \mathrm{Cl}_2\right]\)
 
1. a and b 2. a,b, and c
3. c and d 4. b, c, and d
Subtopic:  Introduction, Classification and Nomenclature |
 59%
Level 3: 35%-60%
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Given below are two statements : 
Statement I:  \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}\) is a homoleptic complex, whereas \([Co(NH_3)_4 Cl_2]^+\) is a heteroleptic complex.
Statement II: Complex \([Co(NH_3)_6]^{3+}\) has only one kind of ligand but \([Co(NH_3)_4 Cl_2]^+\) has more than one kind of ligands. 
In light of the above statements, choose the correct answer from the options given below:
1. Both Statement I and Statement II are False.
2. Statement I is True but Statement II is False.
3. Statement I is false but Statement II is True.
4. Both Statement I and Statement II are True.
Subtopic:  Introduction, Classification and Nomenclature |
 86%
Level 1: 80%+
NEET - 2024
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Homoleptic complex from the following complexes is: 

1. Triamminetriaquachromium (III) 
2. Potassium trioxalatoaluminate (III) 
3. Diamminechloridonitrito-N-platinum (II) 
4. Pentaamminecarbonatocobalt (III) chloride 
Subtopic:  Introduction, Classification and Nomenclature |
 82%
Level 1: 80%+
NEET - 2023
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Which of the following sets represents a complex and a double salt, respectively?

1. CuSO4.5H2O and CuCl2.4NH3
2. PtCl2.2NH3 and PtCl4.2HCl
3. K2PtCl2.2NH3 and KAl(SO4)2.12H2O
4. NiCl2.6H2O and NiCl2(H2O)4
Subtopic:  Introduction, Classification and Nomenclature |
 82%
Level 1: 80%+
NEET - 2023
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The IUPAC name of the following complex is:
[Ag(H₂O)₂][Ag(CN)₂] 

1. Diaquasilver(I) dicyanidoargentate (I)
2. Dicyanidosilver(II) diaquaargentate(II)
3. Diaquasilver(II) dicyanidoargentate(II)
4. Dicyanidosilver(I) diaquaargentate(I)
Subtopic:  Introduction, Classification and Nomenclature |
 63%
Level 2: 60%+
NEET - 2022
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The correct order of the stoichiometries of AgCl formed when AgNO3 in excess is treated with the complexes
CoCl3.6NH3, CoCl3.5NH3, CoCl3.4NH3 respectively is:

1. 3AgCl, 1AgCl, 2AgCl 2. 3AgCl, 2AgCl, 1AgCl
3. 2AgCl, 3AgCl, 1AgCl 4. 1AgCl, 3AgCl, 2AgCl
Subtopic:  Introduction, Classification and Nomenclature |
 88%
Level 1: 80%+
NEET - 2017
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The sum of the coordination number and oxidation number of the metal M in the complex [M(en)2(C2O4)]Cl is:

1. Nine (9) 2. Six (6)
3. Seven (7) 4. Eight (8)
Subtopic:  Introduction, Classification and Nomenclature |
 61%
Level 2: 60%+
NEET - 2015
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The IUPAC name of complex ion, [Fe(CN)6]3- is:

1. Hexacyanoiron(III) ion 2. Hexacyanitoferrate(III) ion
3. Tricynoferrate(III) ion 4. Hexacyanidoferrate(III) ion
Subtopic:  Introduction, Classification and Nomenclature |
 79%
Level 2: 60%+
NEET - 2015
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