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Q. No.
Match List-I with List-II:
List-I List-II
A. Haber process I. Fe catalyst
B. Wacker oxidation II. \(PdCl_2\)
C. Wilkinson catalyst III. \([PPh_3)_3 RhCl]\)
D. Ziegler catalyst IV. \(TiCl_4~ \text {with}~ Al(CH_3)_3\)
Choose the correct answer from the options given below:
1. A-I, B-II, C-III, D-IV 2. A-I, B-IV, C-III, P-II
3. A-I, B-II, C-IV, D-III 4. A-II, B-III, C-I, D-IV
Subtopic:  Organometallic Complexes & their Uses |
 61%
Level 2: 60%+
NEET - 2025
Please attempt this question first.
Hints
Please attempt this question first.
Identify the structural features common to [Mn₂(CO)₁₀] and [Co₂(CO)₈]:
A. Presence of a metal-metal bond
B. Presence of terminal carbonyl groups
C. Presence of bridging carbonyl groups
D. Metals in the zero oxidation state
Choose the correct answer from the options given below:
1. Only A, B and C 2. Only B, C and D
3. Only A, C and D 4. Only A, B and D
Subtopic:  Organometallic Complexes & their Uses |
 58%
Level 3: 35%-60%
NEET - 2024
Hints
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 |
 69%
Level 2: 60%+
NEET - 2023
Hints
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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 |
 63%
Level 2: 60%+
NEET - 2022
Hints
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 |
 61%
Level 2: 60%+
NEET - 2022
Hints

Iron carbonyl, FeCO5, is classified as:

1. Tetranuclear 2. Mononuclear
3. Trinuclear 4. Dinuclear
Subtopic:  Organometallic Complexes & their Uses |
 79%
Level 2: 60%+
NEET - 2018
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The  complex ion that does not expected to absorb visible light is:

1. [Ni(CN)4]2-

2. [Cr(NH3)6]3+

3. [Fe(H2O)6]2+

4. [Ni(H2O)6]2+

Subtopic:  Organometallic Complexes & their Uses |
 77%
Level 2: 60%+
AIPMT - 2010
Hints

Anticancer agent among the following is:

1.   2.  
3.   4.  

Subtopic:  Organometallic Complexes & their Uses |
 79%
Level 2: 60%+
AIPMT - 2004
Hints

A metal ion present in vitamin B12 is:

1. Fe(II) 2. Co(III)
3. Zn(II) 4. Ca(II)
Subtopic:  Organometallic Complexes & their Uses |
 79%
Level 2: 60%+
AIPMT - 2003
Hints
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The organometallic compound that is σ and π bonded is:

1. [Fe(η5-C5H5)2]

2. K[PtCl3(η2-C2H4)]

3. [Co(CO)5NH3]+2

4. Fe(CH3)3

Subtopic:  Organometallic Complexes & their Uses |
 61%
Level 2: 60%+
AIPMT - 2001
Hints
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