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
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
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]+
Which one of the following statements is not correct?
Mercury (II) iodide dissolves in excess of Potassium iodide solution
Tin (IV) chloride is made by dissolving Tin solution in concentrated Hydrochloric acid
Zinc dissolves in Sodium hydroxide solution
Carbon monoxide reduces Iron (III) oxide to Iron
Coordination number of Ni in [Ni(C2O4)3]4- is
3
6
4
2
The structure and hydridisation of Si (CH3)4 is
Octahedral, sp3d
Tetrahedral, sp3
Bent, sp
Trigonal, sp2
In metal carbonyl having general formula M(CO)x where, M = metal, x = 4 and the metal is bonded to
Carbon and oxygen
C ≡ O
Oxygen
Carbon
The complex ion [Co(NH3)6]3+ is formed by sp3d2 hydridisation. Hence, the ion should possess
Octahedral geometry
Tetrahedral geometry
Square planar geometry
Tetragonal geometry
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
The number of geometrical isomers for [Pt(NH3)2]Cl2 is
1
