The correct order of the stoichiometrics of AgCl formed when AgNO3 in excess is treated with the complexes:- CoCl3.6NH3, CoCl3.5NH3, CoCl3.4NH3, respectively, is :
1. 1 AgCl, 3 AgCl, 2 AgCl
2. 3 AgCl, 1 AgCl, 2 AgCl
3. 3 AgCl, 2 AgCl, 1 AgCl
4. 2 AgCl, 3AgCl, 1 AgCl
If an excess of solution is added to 100 mL of a 0.024 M solution of dichlorobis (ethylenediamine) cobalt (III) chloride, then the number of moles of AgCl that will be precipitated is:
1. | 0.0012 | 2. | 0.0016 |
3. | 0.0024 | 4. | 0.0048 |
When 0.1 mol of CoCl3(NH3)5 is treated with an excess of AgNO3, 0.2 mol of AgCl is obtained. The conductivity of the solution will correspond to:
1. | 1:3 electrolyte | 2. | 1:2 electrolyte |
3. | 1:1 electrolyte | 4. | 3:1 electrolyte |
A complex has a molecular formula MSO4Cl.6H2O. Its aqueous solution gives white precipitate with barium chloride solution and no precipitate is obtained when it is treated with silver nitrate solution.
If the secondary valence of the metal is six, the correct representation of the complex is:
1. [M(H2O)4Cl]SO4.2H2O
2. [M(H2O)6]SO4
3. [M(H2O)5Cl]SO4.H2O
4. [M(H2O)3Cl]SO4.3H2O
A solution containing 2.675 g of CoCl3.6NH3 (molar mass = 267.5 g mol-1) is passed through a cation exchanger. The chloride ions obtained in the solution were treated with an excess of AgNO3 to give 4.78 g of AgCl. Formula of the complex is (Atomic mass of Ag = 108u) :
1. [CoCl(NH3)5]Cl2
2.
3. [CoCl2(NH3)4]Cl
4. [CoCl3(NH3)3]
1. | 0.002 | 2. | 0.003 |
3. | 0.01 | 4. | 0.001 |