Chemistry Question Bank

The geometry of Ni(CO)4 and Ni(PPh3)2Cl2 are [Manipal 2006]

Cr3+ form four complexes with four different ligands which are [Cr(Cl)6]3–, [Cr(H2O)6]3+, [Cr(NH3)6]3+ and [Cr(CN)6]3–. The order of CFSE (0) in these complexes is in the order :

The magnitude of crystal field stabilization energy in tetrahedral complexes (CFSE of t ) is considerably less than that in the octahedral field because

The crystal field splitting energy for octahedral ( ) and tetrahedral ( t ) complexes is related as (a) t (b) t (c) t (d) t

Assign the hybridization, shape and magnetic moment of K3[Cu(CN)4]:

[Cr(H2O)6]Cl3 (atomic number of Cr = 24) has a magnetic moment of 3.83 B.M. The correct distribution of 3d electrons in the chromium present in the complex is:

Among the following, the compound that is both paramagnetic and coloured is

The compound having tetrahedral geometry is

Spin only magnetic moment of the compound Hg[Co(SCN)4] is (a) (b) (c) (d)

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?