The complex [Pt (NH₃)₂Cl(NH₂CH₃)]Cl correct IUPAC name is:

Aqueous copper sulphate solution gives a green precipitate of A with aqueous potassium fluoride. What would be the correct molecular formula of A?

When an excess of aqueous KCN is added to an aqueous solution of copper sulphate, what coordination entity is formed?

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 coordination number and oxidation number of Co in the complex (NH₄)₂[CoF₄] are:

 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

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 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–

${\mathrm{FeSO}}_4$ solution mixed with ${\left({\mathrm{NH}}_4\right)}_2{\mathrm{SO}}_4$ solution in 1:1 molar ratio gives the test of Fe²⁺ ion

but ${\text{CuSO}}_4$ solution mixed with aqueous ammonia in 1:4 molar ratio does not give the test of Cu²⁺ ion because: