NEET Chemistry Coordination Compounds Class 12 Questions

Which of the following complexes formed by Cu²⁺ ions is most stable?

Indicate the complex ion which shows geometrical isomerism.

The magnetic nature of elements depends on the presence of unpaired electrons. Identify the configuration of transition element, which shows highest magnetic moment.

The magnetic moment is associated with its spin angular momentum and orbital angular momentum. Spin only magnetic moment value of Cr³⁺ ion is

The correct IUPAC name of [Pt(NH₃)₂Cl₂] is

Assertion : Co(IV) is known but Ni(IV) is not. Reason : Ni(IV) has d⁴ electronic configuration.

Assertion (A): [Fe(CN)₆]³⁻ ion shows magnetic moment corresponding to two unpaired electrons.

Reason (R): Because it has d²sp³ type hybridisation.

Weak field ligands form high spin complexes due to (where Δ₀ is crystal field splitting and P = pairing energy)

Which of the following statements is correct about [Co(H₂O)₆]²⁺ complex?

[Co(NH₃)Cl(en)]²⁺ shows two geometrical isomers cis and trans. Which of the following statements is correct?

Give reason for the statement, [Ni(CN)₄]²⁻ is diamagnetic while [NiCl₄]²⁻ is paramagnetic in nature.

In the following question, a statement of assertion is followed by a statement of reason. Mark the correct choice. Assertion: [Cu(NH₃)₄]²⁺ is coloured while [Cu(CN)₄]³⁻ is colourless. Reason: [Cu(NH₃)₄]²⁺ has dsp² hybridization.

Assertion : K₂[Ni(EDTA)] is more stable than K₃[Al(C₂O₄)₃]. Reason : Ni is a transition element while Al is a non-transition element.

Which one of the following complexes will have four isomers?

The calculated spin only magnetic moment of Cr²⁺ ion is

Match the Column I with Column II and mark the appropriate choice.

Which of the following sets of examples and geometry of the compounds is not correct?

[Co(C₂O₄)₃]³⁻ is a diamagnetic complex because

The charges x and y on the following ions are (i) [Co(NH₃)₆]Cl₃ (ii) [Fe(CN)₆]y⁻ (Oxidation state of Co is +3 and Fe is +2 in their respective complexes.)

Which of the following sets of examples and geometry of the compounds is not correct?

Which of the following statements is correct for [Mn(CN)₆]³⁻ according to valence bond theory?

The magnitude of CFSE (crystal field splitting energy, Δ₀) can be related to the configuration of d-orbitals in a coordination entity as

IUPAC name of [Pt(NH₃)₂Cl(NO₂)] is :

What is the coordination number of the central atom in a complex determined by?

Which type of isomerism arises from the binding of an ambidentate ligand through different atoms?

What determines the coordination number of the central atom in a coordination compound?

What is the electronic configuration of the cobalt ion in the complex [Co(NH3)6]3+?

What is the property of transition metal complexes that results in a wide range of colors?

Which of the following statements about coordination compounds is correct?

Which of the following statements about coordination compounds is correct?

Assertion (A): In coordination chemistry, the term 'hydrate isomerism' is used when water molecules are involved as solvent molecules.

Reason (R): Solvate isomerism involves differences in whether a solvent molecule is directly bonded to the metal ion or is present as free solvent molecules.

Assertion (A): A coordination compound containing an ambidentate ligand can exhibit linkage isomerism.

Reason (R): The metal-carbon bond in metal carbonyls possesses both sigma and pi character.

Assertion (A): Double salts dissociate completely into simple ions in aqueous solutions.

Reason (R): Complex ions like [Fe(CN)6]4– do not dissociate into their constituent ions in water.

Assertion (A): Anionic ligands exert the greatest splitting effect in coordination compounds.

Reason (R): The crystal field model assumes ligands are point charges.

Assertion (A): The coordination number of a central metal atom is determined by the number of sigma bonds formed by ligands.

Reason (R): Pi bonds between ligands and the central metal atom do not contribute to the coordination number.

Assertion (A): The crystal field theory (CFT) fails to explain the covalent character of bonding in coordination compounds.

Reason (R): CFT assumes ligands are point charges leading to the highest splitting effect by anionic ligands.

Assertion (A): The geometry of the complex ion [MnBr4]2– is tetrahedral.

Reason (R): The magnetic moment of the complex ion is 5.9 BM, indicating the presence of five unpaired electrons.

Match Column-I with Column-II.

What type of isomerism is exhibited by coordination compounds containing ambidentate ligands?

What type of isomerism arises in coordination compounds containing ambidentate ligands?

What type of isomerism involves complexes with the same chemical formula but different arrangements of atoms?

What determines the coordination number of the central atom in a coordination compound?

What determines the coordination number of a central atom in a coordination compound?

What is the energy separation denoted by D o in crystal field theory for octahedral complexes?

What type of isomerism occurs in octahedral complexes of the formula [Ma3b3]?

Which type of isomerism arises when didentate ligands are present in complexes of the formula [MX2(L–L)2]?

Which of the following statements about coordination compounds is correct?

Which of the following statements about coordination compounds is correct?

Which of the following statements about the properties of coordination compounds is correct?

Which of the following statements about ligand arrangement in coordination compounds is correct?