The coordination number and oxidation state of Cr in K3[Cr(C2O4)3] are respectively
3 and +3
3 and 0
6 and +3
4 and +2
In the separation of Cu2+ and Cd2+ of IInd group in qualitative analysis of cations, tetrammine copper (II) sulphate and tetrammine cadmium (II) sulphate react with KCN to form the corresponding cyano complexes, which one of the following pairs of the complexes and their relative stability enables the separation of Cu2+ and Cd2+?
K3[Cu(CN)4] : less stable and
K2[Cd(CN)4] : more stable
K3[Cu(CN)4] : more stable and
K2[Cd(CN)4] : less stable
K2[Cu(CN)4] : less stable and
K2[Cu(CN)4] : more stable and
Shape of Fe(CO)5 is
Octahedral
Square planar
Trigonal bipyramidal
Square pyramidal
The structure and hydridisation of Si (CH3)4 is
Octahedral, sp3d
Tetrahedral, sp3
Bent, sp
Trigonal, sp2
Which of the following organometallic compounds is σ and π bonded?
[Fe(η5 - C5H5)2]
K[PtCl3 (η2 - C2H4)]
[Co(CO)5 NH]3]2+
Fe(CH3)3
Coordination number of Ni in [Ni(C2O4)3]4- is
3
6
4
2
Which of the following will give maximum number of isomers?
[Co(NH3)4Cl2]
[Ni (en) (NH3)4]2+
[Ni(C2O4) (en)2]2-
[Cr(SCN)2(NH3)4]+
The total number of possible isomers for the complex compound [Cu ll (NH3)4] [PtII Cl4] are
5
The number of geometrical isomers for [Pt(NH3)2]Cl2 is
1
Atomic number of Cr and Fe are respectively 24 and 26, which of the following is paramagnetic with the spin of electron?
[Cr(CO)6]
[Fe(CO)5]
[Fe(CN)6]4-
[Cr(NH3)6]3+