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

Subtopic:  Introduction, Classification and Nomenclature |
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Number of ions produced from the complex [Co(NH3)6]Cl2 in an aqueous solution are-

1. 6      

2. 4    

3. 3        

4. 2

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Compound with the highest magnetic moment value is -

1. [Cr(H2O)6]3+       

2. [Fe(H2O)6]2+            

3. [Zn(H2O)6]2+

4. [Ti(H2O)6]2+

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The oxidation number of Cobalt in K[Co(CO)4] is :

1. +1       

2. +3         

3. –1         

4. –3

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 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–

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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
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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

 

 

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The hybridisation of [FeF6]3- is:

1. sp3d2
2. d2sp3
3. dsp3
4. sp3

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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]
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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-
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