Chemistry Question Bank

[EDTA]4– has coordination number

Which of the following is a hexadentate ligand?

Which one of the following is tridentate ligand? (a) - NO

Which of the following complex ions is paramagnetic?

The structures of Ni(CO)4 and Ni(PPh3)2Cl2 are

Which of the following statements is correct?

The formation of the complex ion [Co(NH3)6]3+ involves sp3d2 hybridization of Co3+. Hence, the complex ion should possess

The hybridization states of the central atom in the complex ions [FeF6]3–, [Fe(H2O)6]3+ and [Ni(NH3)6]2+ are

The hybridization states of the central atom in the complexes Fe(CN)6 3–, Fe(CN)6 4– and CO(NO2)6 3– are

Which one of the following has a square planar geometry? (At. no. Co = 27, Ni = 28, Fe = 26, Pt = 78)

The magnetic moment of a complex ion is 2.83 BM. The complex ion is

The value of magnetic moment for a complex ion is 1.73 BM. The complex. ion is

Among the following ions, which one has the highest paramagnetism?

An octahedral complex is formed when hybrid orbitals or the following type are involved

Which of the following complex ions obeys Sidgwick‘s effective atomic number (EAN) rule?

The effective atomic number for the complex ion [Pd(NH3)6]4+ is

The effective atomic number for the complex ion [Ni(CN)4]2– is

The ligand N(CH2CH2NH2)3 is

Consider the following complex ions, P, Q and R. P = [FeF6]3- , Q = [V(H2O)6]2+ and R = [Fe(H2O)6]2+ The correct order of the complex ions, according to their spin-only magnetic moment values (in BM) is

Among [NiCO)4], [NiCl4]2–, [Co(NH3)4Cl2] Cl, Na3 [CoF6], Na2O2 and CsO2, the total number of paramagnetic compounds is

In Fe(CO)5, the Fe – C bond possesses

Among [NiCO)4], [NiCl4]2–, [Co(NH3)4Cl2] Cl, Na3 [CoF6], Na2O2 and CsO2, the total number of paramagnetic compounds is

Which of the following compounds shows optical isomerism ?

Which of the following has an optical isomer ?

Which one of the following has largest number of isomers? (R = alkyl group, en = ethylenediamine)