Compound with the highest magnetic moment value is -
1. [Cr(H2O)6]3+
2. [Fe(H2O)6]2+
3. [Zn(H2O)6]2+
4.
The oxidation number of Cobalt in K[Co(CO)4] is :
1. +1
2. +3
3. –1
4. –3
The most stable complex among the following is -
1. [Fe(H2O)6]3+
2. [Fe(NH3)6]3+
3. [Fe(C2O4)3]3–
4. [FeCl6]3–
Number of ions produced from the complex [Co(NH3)6]Cl2 in an aqueous solution are-
1. 6
2. 4
3. 3
4. 2
The correct IUPAC name of the complex K[Cr(H2O)2(C2O4)2].3H2O is-
1. Potassiumdiaquadioxalatochromate(III)trihydrate
2. diaquadioxalatopotassiumchromate (III) trihydrate
3. Potassiumdihydridodioxalatochromate(IV)trihydrate
4. Potassiumdiaquadioxalatochromate(II)trihydrate
The coordination number and oxidation number of Co in the complex (NH4)2[CoF4] are:
1. | +2, 4 | 2. | 4, +2 |
3. | 6, +3 | 4. | +3, 6 |
The oxidation number and coordination number of Co in the complex K3[Co(C2O4)3] respectively are:
1. +3, 6
2. +2, 6
3. 6, +3
4. +2, 4
The hybridisation of [FeF6]3- is:
1. sp3d2
2. d2sp3
3. dsp3
4. sp3
When an excess of aqueous KCN is added to an aqueous solution of copper sulphate, what coordination entity is formed?
1. | K2[Cu(CN)6] | 2. | K3[Cu(CN)4] |
3. | K2[Cu(CN)4] | 4. | K2[Cu(CN)3] |
Aqueous copper sulphate solution gives a green precipitate of A with aqueous potassium fluoride. What would be the correct molecular formula of A?
1. | [CuF6]3- | 2. | [CuF4]2- |
3. | [CuF2]- | 4. | [CuF5]4- |