STANDARD Chemistry Coordination Compounds Class 12 Questions

The number of ions given by [Pt(NH₃)₆]Cl₄ in aqueous solution will be

Arrange the following complexes in increasing order of conductivity of their solutions. (i) [Co(NH₃)₃Cl₃] (ii) [Co(NH₃)₄Cl₂]Cl (iii) [Co(NH₃)₆]Cl₃ (iv) [Co(NH₃)₅Cl]Cl₂

Which of the following primary and secondary valencies are not correctly marked against the compound?

Ammonia acts as a very good ligand but ammonium ion does not form complexes because

According to Werner's theory of coordination compounds

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

Among the following, which are ambidentate ligands. (i) SCN⁻ (ii) NO₃⁻ (iii) NO₂⁻ (iv) C₂O₄²⁻

Which of the following is not a neutral ligand?

Which of the following ligands will not show chelation?

Fe³⁺ compounds are more stable than Fe²⁺ compounds because

Which of the following is a tridentate ligand?

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

The charges x and y on the following ions are (i) [Co(NH₃)₂Cl₄]ˣ (ii) [Fe(CN)₆]ʸ (Oxidation state of Co is +3 and Fe is +2 in their respective complexes.)

Identify the statement which is not correct.

Which of the following is not correctly matched?

Amongst TiF₆²⁻, CoF₆³⁻, Cu₂Cl₂ and NiCl₄²⁻m which are the colourless species? (atomic number of Ti = 22, Co = 27, Ni = 28, Cu = 29)

The correct IUPAC name of the coordination compound K₃[Fe(CN)₅NO] is

Tetraammineaquachloridocobalt (III) chloride can be written as

The name of the compound [Co(NH₃)₅NO₂]Cl₂ will be

Which of the following will not show geometrical isomerism?

For the square planar complex [M abcd] where M is the central atom and a, b, c, d are monodentate ligands, the number of possible geometrical isomers are

Which of the following complex species is not expected to exhibit optical isomerism?

The oxidation state of molybdenum in its oxo complex species [Mo₂O₄(C₂H₄)₂(H₂O₂)]²⁻ is

Which one of the following complexes will have four isomers?

Few isomers are given below. Mark the correct statement regarding them. (i) [Cr(H₂O)₆]Cl₃ (ii) [Cr(H₂O)₅Cl]Cl₂·3H₂O (iii) [Cr(H₂O)₄Cl₂]Cl·H₂O

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

Which of the following ions does not exist?

[Pt(NH₃)₄][CuCl₄] and [Cu(NH₃)₄][PtCl₄] are known as

The hybridization involved in [Co(NH₃)₆]³⁺ is

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

Which of the following is correct?

The complex ion which has no d-electrons in the central metal atom is

[CoF₆]³⁻ is

The magnitude of magnetic moment (spin only) of [NiCl₄]²⁻ will be

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

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

Which of the following shall form an octahedral complex?

Which of the following statements is/are correct? (i) In octahedral complexes, t₂g orbitals possess low energy as compared to eₙ orbitals. (ii) In tetrahedral complexes, t₂ orbitals possess high energy as compared to e orbitals. (iii) In octahedral complexes, eₙ orbitals possess low energy as compared to t₂g orbitals.

[FeF₆]³⁻ is paramagnetic due to presence of unpaired electrons in the complex. The five electrons remain unpaired because

What are the correct oxidation state, coordination number, configuration, magnetic character and magnetic moment of K₄[Mn(CN)₆]?

The increasing order of crystal field splitting strength of the given ligands is

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

Dow spin tetrahedral complexes are not formed because

Match the complex ions given in column I with their colour given in column II and mark the appropriate choice.

[Fe(CN)₆]⁴⁻ and [Fe(H₂O)₆]²⁺ show different colours in dilute solution because

The geometry possessed by [Ni(CO)₄] is

Cr–C bond in the compound [Cr(CO)₄] shows π-character due to

Both geometrical and optical isomerism are shown by

Given below are two statements. Statement I : In CuSO₄.5H₂O, Cu – O bonds are present. Statement II : In CuSO₄.5H₂O, ligands coordinating with Cu(II) ion are O-and S-based ligands. In the light of the above statements choose the correct answer from the options given below.

IUPAC name of [Pt(NH₃)₂Cl(NO₂)] is