Ethylene diaminetetraacetate (EDTA) ion is:

1. Bidentate ligand with two "N" donor atoms
2. Tridentate ligand with three "N" donor atoms
3. Hexadentate ligand with four "O" and two "N'' donor atoms
4. Unidentate ligand

Subtopic:  Ligands |
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Match Column I with Column II, Columns I and II represent complexes and magnetic moment (BM) respectively. 

Column I Column II
(a). [FeCN6]3- (i). 5.92 BM
(b). [Fe(H2O)6]3+ (ii). 0 BM
(c). [Fe(CN)6]4- (iii). 4.90 BM
(d). [Fe(H2O)6]2+ (iv). 1.73 BM

Choose the correct answer from the options given below:

(a). (b). (c). (d).
1. (i). (iii). (iv). (ii).
2. (iv). (i). (ii). (iii).
3. (iv). (ii). (i). (iii).
4. (ii). (iv). (iii). (i).
Subtopic:  VBT, CFT & their Limitations |
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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 |
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The order of energy absorbed which is responsible for the color of complexes is:
\((A) \ \left[\mathrm{Ni}\left(\mathrm{H}_{2} \mathrm{O}\right)_{2}(\text { en })_{2}\right]^{2+}\)
\( (B) \ \left[\mathrm{Ni}\left(\mathrm{H}_{2} \mathrm{O}\right)_{4}(\mathrm{en})\right]^{2+} and\)
\( (C) \ \left[\mathrm{Ni}(\mathrm{en})_{3}\right]^{2+}\)
1. B > A > C  2. A > B > C 
3. C > B > A  4. C > A > B
Subtopic:  VBT, CFT & their Limitations |
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The number of bridging carbonyl groups in [Co2(CO)8] and [Mn2(CO)10], respectively are:

1. 2 and 0
2. 2 and 2
3. 2 and 4
4. 0 and 2

Subtopic:  Organometallic Complexes & their Uses |
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The correct order of spin-only magnetic moment for the given complexes is: 

1. \([Co(H_2O)_6]^{2+} > [MnCl_6]^{3-} > [Fe(CN)_6]^{3-} \)
2. \([Fe(CN)_6]^{3-} >[Co(H_2O)_6]^{2+} > [MnCl_6]^{3-} \)
3. \([MnCl_6]^{3-} >[Fe(CN)_6]^{3-} >[Co(H_2O)_6]^{2+} \)
4. \([MnCl_6]^{3-} > [Co(H_2O_6]^{2+} > [Fe(CN)_6]^{3-} \)

Subtopic:  VBT, CFT & their Limitations |
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Match List-I with List-II :
List-I (Complexes) List-II (Type of isomer)
A. [Co(NH3)5NO2]Cl2 and [Co(NH3)5ONO]Cl2 I. Ionisation isomerism
B. [Cr(NH3)6] [Co(CN)6] and [Cr(CN)6][Co(NH3)6] II. Coordination isomerism
C. [Co(NH3)5(SO4)]Br and [Co(NH3)5Br]SO4 III. Linkage isomerism
D. [Cr(H2O)6]Cl3 and [Cr(H2O)5Cl]Cl2.H2O IV. Solvate isomerism
Choose the correct answer from the options given below:
(A) (B) (C) (D)
1. (III) (I) (II) (IV)
2. (II) (III) (IV) (I)
3. (III) (II) (I) (IV)
4. (IV) (III) (II) (I)
Subtopic:  Isomerism in Coordination Compounds |
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Select the correct option based on statements below:
 
Assertion (A): The metal carbon bond in metal carbonyls possesses both \(\sigma\) and \(\pi\) character.
Reason (R): The ligand to metal bond is a \(\pi\) bond and metal to ligand bond is a \(\sigma\) bond.
 
1. Both (A) and (R) are True and (R) is the correct explanation of (A).
2. Both (A) and (R) are True but (R) is not the correct explanation of (A).
3. (A) is True but (R) is False.
4. (A) is False but (R) is True.
Subtopic:  Organometallic Complexes & their Uses |
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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 |
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The most stable compound, among the following, is:
1. [Co(NH3)6]2(SO4)3
2. [Co(NH3)4(H2O)Br](NO3)2
3. [Co(NH3)3(NO3)3]
4. [CoCl2(en)2]NO3
Subtopic:  Organometallic Complexes & their Uses |
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