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
Coordination number of Ni in [Ni(C2O4)3]4- is
3
6
4
2
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
Which statement is incorrect?
Ni(CO)4- tetrahedral, paramagnetic
[Ni(CN)4]2- -square planar, diamagnetic
Ni(CO)4- tetrahedral, diamagnetic
[Ni(Cl)4]2- tetrahedral, paramagnetic
A coordination complex compound of cobalt has the molecular formula containing five ammonia molecules, one nitro group and two chlorine atoms for one cobalt atom. One mole of this compound produces three mole ions in an aqueous solution. On reacting this solution with excess of AgNO3 solution, we get two moles of AgCl precipitate. The ionic formula for this complex would be
[Co(NH3)5(NO2)]Cl2
[Co(NH3)5Cl] [(NO2)]Cl2
[Co(NH3)4(NO2)]Cl] [NH3)Cl]
[Co(NH3)5] [(NO2)2Cl2]
The structure and hydridisation of Si (CH3)4 is
Octahedral, sp3d
Tetrahedral, sp3
Bent, sp
Trigonal, sp2
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]+
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+
The formula of dichlorobis (urea) copper (II) is
[Cu{O = C(NH2)Cl}]Cl
[CuCl2{O = C(NH2)2}2]
[Cu{O = C(NH2)2}]Cl2
[CuCl2{O = C(NH2)2H2}]
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 ion (III) oxide to iron