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NEET CHEMISTRYCoordination CompoundsEasy

Question

Iron carbonyl, Fe(CO)5Fe(CO)_5, is classified as:

A

Tetranuclear

B

Mononuclear

C

Trinuclear

D

Dinuclear

Step-by-Step Solution

Coordination entities are classified based on the number of central metal atoms they contain.

  1. Mononuclear: Entities containing a single central metal atom.
  2. Polynuclear (Dinuclear, Trinuclear, etc.): Entities containing more than one metal atom.

Fe(CO)5Fe(CO)_5 (Pentacarbonyliron(0)) contains only one iron atom bonded to five carbonyl ligands. Therefore, it is a mononuclear carbonyl. In contrast, compounds like Mn2(CO)10Mn_2(CO)_{10} or Co2(CO)8Co_2(CO)_8 are dinuclear as they contain two metal atoms bridged or bonded directly .

Exam Context & Concepts Covered

This question aligns with the NEET CHEMISTRY syllabus, specifically targeting concepts from Coordination Compounds. Mastering this topic is crucial for scoring well in the upcoming medical entrance examinations. Solving conceptually related problems will help you understand the nuances of these concepts and improve your problem-solving speed.

CHEMISTRYCoordination Compoundscarbonylclassified

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The complex, $[\text{Pt}(\text{Py})(\text{NH}_3)\text{BrCl}]$ will have how many geometrical isomers?

A.4
B.0
C.2
D.3
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Among the given complexes, the complex having the highest paramagnetic behaviour is: (At. No. Ti = 22, Cr = 24, Co = 27, Zn = 30)

A.$[Zn(NH_3)_6]^{2+}$
B.$[Ti(NH_3)_6]^{3+}$
C.$[Cr(NH_3)_6]^{3+}$
D.$[Co(NH_3)_6]^{3+}$
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Mg is present in:

A.Chlorophyll
B.Haemoglobin
C.Vitamin-B12
D.Vitamin-B
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The complexes $[\text{Co}(\text{NH}_3)_6][\text{Cr}(\text{CN})_6]$ and $[\text{Cr}(\text{NH}_3)_6][\text{Co}(\text{CN})_6]$ are examples of:

A.Ionisation isomerism
B.Coordination isomerism
C.Geometrical isomerism
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The coordination compound that gives the maximum number of isomers is:

A.$[Co(NH_3)_4Cl_2]$
B.$[Ni(en)(NH_3)_4]^{2+}$
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HardSolve

$[Cu(NH_3)_4]^{2+}$ reacts with $HNO_3$ in excess of water and gives:

A.$Cu(OH)_2$
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CFSE (in the octahedral field) will be maximum in: (Atomic number Co = 27)

A.[Co(H₂O)₆]³⁺
B.[Co(NH₃)₆]³⁺
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D.[Co(C₂O₄)₃]³⁻
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The IUPAC name of the following complex is: $[Ag(H_2O)_2][Ag(CN)_2]$

A.Diaquasilver(I) dicyanidoargentate(I)
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C.Diaquasilver(II) dicyanidoargentate(II)
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