The correct representation of tetrahydroxidozincate (II) is:
1. \([Zn(OH)_4]^{2-}\)
2. \([Zn(OH)_4]^{-}\)
3. \([Zn(OH)_4]^{3-}\)
4. \([Zn(OH)_4]\)

Subtopic:  Introduction, Classification and Nomenclature |
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The correct representation of Potassium tris(oxalato)chromate(III) is:

1. K2Cr(C2O4)3
2. K3Cr(C2O4)3
3. K3Cr(C2O4)2
4. K2Cr(C2O4)4

Subtopic:  Introduction, Classification and Nomenclature |
 90%
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The complex that is used as an anticancer agent is:

1. mer-[Co(NH3)3Cl3         

2. cis-[PtCl2(NH3)2]

3. cis-K2[PtCl2 Br2]           

4. Na2CoCl4

Subtopic:  Introduction, Classification and Nomenclature |
 87%
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NEET - 2014
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A solution of [Ni(H2O)6]2+ is green, but a solution of [Ni(CN)4]2– is colorless because:

1. There are paired electrons in [Ni(H2O)6]2+ while all electrons are unpaired in [Ni(CN)4]2–
2. There are unpaired electrons in [Ni(H2O)6]2+ while all electrons are paired in [Ni(CN)4]2–
3. There are unpaired electrons in [Ni(H2O)6]2+ and [Ni(CN)4]2–
4. None of the above.

Subtopic:  Introduction, Classification and Nomenclature |
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If 1/3rd of the total chlorine of the compound is precipitated by adding AgNO3 to its aqueous solution, then the most likely structure of CrCl3.6H2O among the following is:

1. CrCl3.6H2O 2. [Cr(H2O)3Cl3](H2O)3
3. [CrCl2(H2O)4]Cl.2H2O 4. [CrCl.(H2O)5]Cl2.H2O
Subtopic:  Introduction, Classification and Nomenclature |
 82%
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IUPAC name of [Pt(NH3)3(Br)(NO2)Cl]Cl is:

1. Triamminebromidochloridonitroplatinum(IV)Chloride
2. Triamminebromonitrocholoroplatinum(IV)Chloride
3. Triamminechlorobromonitroplatinum(IV)Chloride
4. Triamminenitrochlorobromoplatinum(IV)Chloride

Subtopic:  Introduction, Classification and Nomenclature |
 81%
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Cobalt(III) chloride forms several octahedral complexes with ammonia.
A compound among the following that does not give a test for chloride ions with silver nitrate at 25 °C is:

1. CoCl3. 3NH3 2. CoCl3. 4NH3
3. CoCl3. 5NH3 4. CoCl3. 6NH3
Subtopic:  Introduction, Classification and Nomenclature |
 80%
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NEET - 2015
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The complex [Pt (NH3)2Cl(NH2CH3)]Cl correct IUPAC name is:

1. Diamminechlorido(methylamine)platinum(II)chloride
2. Diamminechloro(aminomethyl)platinum(II)chlorido
3. Chlorodiammine(methylamine)platinate(II)chloride
4. Chlorido(methylamine)diammineplatinum(II)chloride

Subtopic:  Introduction, Classification and Nomenclature |
 82%
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The hypothetical complex
chlorodiaquatriamminecobalt(III) chloride can be
represented as:

1. CoClNH33H2O2Cl2

2. CoNH33H2OCl3

3. CoNH23H2O2Cl

4. CoNH33H2O3Cl3

Subtopic:  Introduction, Classification and Nomenclature |
 78%
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AIPMT - 2002
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The IUPAC name of [Cr(en)3]Cl3 is:

1. Triethylenediaminechromium (III) chloride
2. Tris(ethylenediammine)chromium (II) chloride
3. Tris(ethylenediammine)chromium (III) chloride
4. Tris(ethylenediamine)chromium (II) chloride
Subtopic:  Introduction, Classification and Nomenclature |
 78%
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