Chemistry Question Bank

Amongst the following, the lowest degree of paramagnetism per mole of the compound at 298 K will be shown by

Amongst[ Ni (CO)4], [Ni (CN)4]2– and [NiCl4]2

The correct order of magnetic moments (spin only values in B.M.) is

Among the following complexes, which has a magnetic moment 5.9 BM ? Ni(CO)4, [Fe(H2O)6]2+, [Co(NH3)6]3+, [MnBr4]2–, [Zn(NH3)4]2+

Which one of the following complex ion has the highest magnetic moment?

The correct order of magnetic moments (spin only) values in BM) among the following is (Atomic number: Mn = 25, Fe = 26, Co = 27)

Choose the correct statement

The geometry of Ni (CO)4 and and Ni (P Ph3)2 Cl2 are

Among [NiCO4], [Ni(CN)4]2–, [NiCl4]2– species, the hybridisation states of the Ni atom are, respectively (At. no. of Ni = 28)

Which one of the following is wrongly matched?

The pair having the same magnetic moment is: [At, No. : Cr = 24, Mn = 25, Fe = 26, Co = 27]

Among TiF6 2-, CoF6 3-, Cu2Cl2 and NiCl4 2- (atomic numbers of Ti = 22, Co = 27, Cu = 29, Ni = 28), the colourless species are

[Sc(H2O)6]3+ ion is

Among [Ni(CO)4], [Ni(CN)4]2– and [NiCl4]2–

The compound which does not show paramagnetism is

Which of the following complex ions/molecules of nickel is paramagnetic?

Which of the following is diamagnetic?

Which of the following octahedral complex ions is diamagnetic?

Which of the following complex ions is diamagnetic?

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