The formula of Tetracarbonylnickel(0) is: 

1. Ni(CO
)3
2. Ni(CO)4
3. Ni(CO)6
4. Ni(CO)5
Subtopic:  Introduction, Classification and Nomenclature |
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Which of the following complexes is/are heteroleptic?

(a)  \(\mathrm{[Co(NH}_{3})_6{ }]^{3+}\) (b)  \(\mathrm[{Fe}\left(\mathrm{NH}_3\right)_4 \mathrm{Cl}_2]^{+}\)
(c)  \(\operatorname[{Mn}(\mathrm{CN})_6]^{4-}\) (d)  \([\mathrm{Co}\left(\mathrm{NH}_3\right)_4 \mathrm{Cl}_2]\)
Choose the correct option:
1. (a, b) 2. (b, c)
3. (c, d) 4. (b, d)
Subtopic:  Introduction, Classification and Nomenclature |
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Match the items given in column I  with column II.
Column I Column II
a. K3[Fe(C2O4)3] i. Diamminechlorido(methylamine)
platinum(II) chloride
b. [Co(NH3)5Cl]Cl2 ii. Potassium trioxalatoferrate(III)
c. [Pt(NH3)2Cl(NH2CH3)]Cl iii. Potassium tetrachlorido
palladate(II)
d. K2[PdCl4] iv. Pentaamminechloridocobalt(III)
chloride
1. a-iv; b-iii; c-ii; d-i
2. a-iv; b-i; c-ii; d-iii
3. a-iii; b-i; c-iv; d-ii
4. a-ii; b-iv; c-i; d-iii
Subtopic:  Introduction, Classification and Nomenclature |
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Which of the following complex is/are homoleptic:

a.  \( {\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}} \) b. \( {\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5 \mathrm{Cl}\right]^{2+}} \)
c. \( {\left[\mathrm{Ni}(\mathrm{CN})_4\right]^{2-}}\) d. \(\left[\mathrm{Ni}\left(\mathrm{NH}_3\right)_4 \mathrm{Cl}_2\right]\)

Choose the correct option.
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, c)

Subtopic:  Introduction, Classification and Nomenclature |
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The oxidation state of nickel in K4[Ni(CN)4] is:
1. –1 2. 0
3. +1 4. +2
Subtopic:  Introduction, Classification and Nomenclature |
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What is the correct name for the compound \(\mathrm{[Co(NH_3)_6]Cl_3}\) ?
1. Cobalt(III) hexamine chloride. 
2. Hexamminecobalt chloride(III). 
3. Hexamminecobalt(III) chloride.
4. Hexamminecobalt(VI) chloride.
Subtopic:  Introduction, Classification and Nomenclature |
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The formula of  potassium tetrahydroxidozincate(II) is:
1. K[Zn(OH)4] 2. K2[Zn(OH)4]
3. K3[Zn(OH)4] 4. K4[Zn(OH)4]
Subtopic:  Introduction, Classification and Nomenclature |
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The correct IUPAC name of [Pt(NH3)2Cl2] is:

1. Diamminedichloridoplatinum (ll)

2. Diamminedichloridoplatinum (lV)

3. Diamminedichloridoplatinum (0)

4. Dichloridodiammineplatinum (lV)

Subtopic:  Introduction, Classification and Nomenclature |
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The formula of potassium trioxalatoaluminate(III) is:

1.
K2[Al(C2O4)3]
2. K[Al(C2O4)3]
3. K3[Al(C2O4)3]
4. K4[Al(C2O4)3]
Subtopic:  Introduction, Classification and Nomenclature |
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Which one of the following statements is incorrect?

1.  Greater the stability constant of a complex greater its stability.
2. Hardness of water is estimated by simple titration with Na2EDTA.
3.  The metal-carbon bond in metal carbonyls possesses both σ and π characters.
4.  Chelate complexes have low stability than similar complexes containing unidentate ligands.

Subtopic:  Introduction, Classification and Nomenclature |
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