Coordination Compounds

An octahedral complex having molecular composition Co 5NH3 Cl SO4 has two isomers A and B. The solution of A gives a white precipitate with AgNO3 solution and the solution of B gives white precipitate with BaCl2 solution. The type of isomerism exhibited by the complex is,

1. Co-ordinate isomerism
2. Ionisation isomerism
3. Geometrical isomerism
4. Linkage isomerism

The number of paramagnetic complexes among [FeF6]3-, [Fe(CN)6]3-, [Mn(CN)6]3-, [Co(C2O4)3]3-, [MnCl6]3-, and [CoF6]3-, which involve d2sp3 hybridization is .

Match List - I with List - II. Choose the correct answer from the options given below :

1. A-I, B-III, C-II, D-IV
2. A-II, B-III, C-IV, D-I
3. A-I, B-IV, C-IV, D-III
4. A-III, B-I, C-II, D-IV

The number of unpaired electrons responsible for the paramagnetic nature of the following complex species are respectively : [Fe(CN)6]3-, [FeF6]3-, [CoF6]3-, [Mn(CN)6]3-

1. 1, 5, 4, 2
2. 1, 4, 4, 2
3. 1, 5, 5, 2
4. 1, 1, 4, 2

The number of paramagnetic metal complex species among [Co(NH3)6]3+, [Co(C2O4)3]3-, [MnCl6]3-, [Mn(CN)6]3-, [CoF6]3-, [Fe(CN)6]3- and [FeF6]3- with same number of unpaired electrons is .

Which one of the following complexes will have o = 0 and = 5.96 B.M.?

1. [FeF6]4-
2. [Mn(SCN)6]4-
3. [Co(NH3)6]3+
4. [Fe(CN)6]4-

Number of stereoisomers possible for the complexes, [CrCl3(py)3] and [CrCl2(ox)2]3- are respectively (py = pyridine, ox = oxalate)

1. 3 & 3
2. 2 & 3
3. 1 & 2
4. 2 & 2

'X' is the number of electrons in t2g orbitals of the most stable complex ion among [Fe(NH3)6]3+, [FeCl6]3-, [Fe(C2O4)3]3- and [Fe(H2O)6]3+. The nature of oxide of vanadium of the type V2OX is :

1. Amphoteric
2. Acidic
3. Basic
4. Neutral

The correct order of [FeF6]3-, [CoF6]3-, [Ni(CO)4] and [Ni(CN)4]2- complex species based on the number of unpaired electrons present is:

1. [CoF6]3- > [FeF6]3- > [Ni(CO)4] > [Ni(CN)4]2-
2. [FeF6]3- > [CoF6]3- > [Ni(CN)4]2- > [Ni(CO)4]
3. [FeF6]3- > [CoF6]3- > [Ni(CN)4]2- = [Ni(CO)4]
4. [Ni(CN)4]2- > [FeF6]3- > [CoF6]3- > [Ni(CO)4]

A metal complex with a formula MCl4 3NH3 is involved in sp3d2 hybridisation. It upon reaction with excess of AgNO3 solution gives 'x' moles of AgCl. Consider 'x' is equal to the number of lone pairs of electrons present in the central atom of BrF5. Then the number of geometrical isomers exhibited by the complex is .