AIPMT Prelims Chemistry Coordination Compounds Class 12 Questions

Which one of the following is an outer orbital complex and exhibits paramagnetic behaviour?

The complex, [Pt (Py) (NH₃) Br Cl ] will have how many geometrical isomers?

The complexes [Co(NH₃)₆] [Co(CN)₆] are the examples of which type of isomerism?

The d-electron configurations of Cr²⁺, Mn²⁺, Fe²⁺ and Co²⁺ are d⁴, d⁵, d⁶ and d⁷ respectively. Which one of the following will exhibit minimum paramagnetic behaviour?

Of the following complex ions, which is diamagnetic in nature?

Which of the following ions will exhibit colour in aqueous solutions?

Which of the following complex ion is not expected to absorb visible light?

The existence of two different coloured complexes with the composition of [Co(NH₃)₄Cl₂]⁺ is due to

Crystal field stabilization energy for high spin d⁴ octahedral complex is

Out of TiF₆²⁻, COF₃⁻⁶, Cu₂Cl₂, and NiCl₂⁻⁴ (Z of Ti = 22, CO = 27, Cu = 29, Ni = 28) the colourless species are:

Which of the following does not show optical isomerism?

Which of the following complex ions is expected to absorb visible light? (1) [Ti (en)₂(NH₃)₂]⁴⁺ (2) [Cr (NH₃)₆]³⁺ (3) [Zn (NH₃)₄]²⁺ (4) [Sc (H₂O)₃ (NH₃)₃]³⁺ (At. no. Zn = 30, Sc = 21, Ti = 22, Cr = 24)

In which of the following co-ordination entities the magnitude of Δ₀ (CFSE in octahedral field) will be maximum? (Atomic number of Co=27)

The d electron configurations of Cr2+, Mn2+, Fe2+ and Ni2+ are 3d4, 3d5, 3d6 and 3d8 respectively. Which one of the following aqua complexes will exhibit the minimum paramagnetic behaviour?

Copper sulphate dissolves in excess of KCN to give :

In which of the following pairs are both the ions coloured in aqueous solution?

[Co(NH₃)₄(NO₂)₂]Cl exhibits:

[Cr(H₂O)₆]Cl₃ (at. no. of Cr = 24) has a magnetic moment of 3.83 BM, the correct distribution of 3d electrons in the chromium of the complex is:

The aqueous solution containing which one of the following ions will be colourless? (Atomic no.: Sc = 21, Fe = 26, Ti = 22, Mn = 25)

Which one of the following is an inner orbital complex as well as diamagnetic in behaviour? (Atomic no.: Zn = 30, Cr = 24, Co = 27, Ni = 28)

Which one of the following is expected to exhibit optical isomerism? (en = ethylenediamine)

Which of the following does not have a metal-carbon bond :-

Which of the following is considered to be an anticancer species :-

In an octahedral structure, the pair of d orbitals involved in d²sp³ hybridization is :-

CN⁻ is a strong field ligand. This is due to the fact that :-

Considering H₂O as a weak field ligand, the number of unpaired electrons in [Mn(H₂O)₆]²⁺ will be – (At. no. of Mn = 25)

In a regular octahedral molecule, MX₆, the number of X–M–X bonds at 180° is :-

Among [Ni(CO)₄], [Ni(CN)₄]²⁻, [NiCl₄]²⁻ species, the hybridization states at the Ni atom are, respectively :- (At. No. of Ni = 28)

Which of the following coordination compounds would exhibit optical isomerism

According to IUPAC nomenclature sodium nitroprusside is named as:

The number of unpaired electrons in the complex ion [CoF₆]³⁻ is: (A + No = Co = 27)

Which one of the following octahedral complexes will not show geometric isomerism? (A and B are monodentate ligands)

Vitamin B₁₂ contains :

Among the following which is not the π-bonded organometallic compound :

Atomic number of Cr and Fe are respectively 24 and 26, which of the following is paramagnetic with the spin of electron :-

The hypothetical complex chloro diaquatrammine cobalt (III) chloride can be represented as :-

CuSO₄ when reacts with KCN forms CuCN, which is insoluble in water. It is soluble in excess of KCN, due to formation of the following complex :-

Which of the following will give maximum number of isomers :-

Coordination number of Ni in [(C₂O₄)₃]⁴⁻ is

Which of following organometallic compound is σ and π bonded :

Which statement is incorrect :

In quantitative analysis of second group in lab. H₂S gas is passed in acidic medium for ppt. When Cu²⁺ and Cd²⁺ react with KCN, than in which of the following condition, ppt will not be formed due to relative stability :

Shape of Fe(CO)₅ is :

Which ion is colourless :

Which complex compound will give four isomers :