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Class 12 Chemistry Practice Test: Werner's Theory of Coordination Compounds
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Avg score: 33% • Most missed: “[Fe(CN)6]4- is an example of a _______”

Werner's theory states that the transition metal cation will have two valencies: a primary and a secondary. The primary valence is equal to the oxidation number of the metal cation, is ionizable, and can be satisfied by negative charges.

Class 12 Chemistry Practice Test: Werner's Theory of Coordination Compounds
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14 Questions

1. What is the primary valence of iron in the coordination entity of compound Fe4[Fe(CN)6]3?
2. The compound tetraamminecopper(II) sulphate, or [Cu(NH3)4]SO4.5H2O, a double salt.
3. Given that 1 mol of NiCl2.6H2O with excess AgNO3 precipitates 2 mols of AgCl, what is the secondary valence of Ni?
4. If the secondary valence in CoCl3.4NH3 is six, the solution conductivity in silver nitrate corresponds to ________ electrolyte.
5. Which is the counter ion in [Pd(NH3)4]2+2Cl–?
6. Which of the following is a complex salt?
7. If Pt in PtCl4.2HCl has a secondary valence of 6, how many mols of AgCl will 1 mol of the compound precipitate with excess AgNO3?
8. Werner postulated that octahedral, tetrahedral and square planar geometrical shapes are more common in coordination compounds of ________
9. If the secondary valence in CoCl3.4NH3 is six, the solution conductivity in silver nitrate corresponds to ________ electrolyte.
10. What is the colour of the compound CoCl3.5NH3?
11. The compound tetraamminecopper(II) sulphate, or [Cu(NH3)4]SO4.5H2O, a double salt.
12. [Fe(CN)6]4- is an example of a _______
13. Werner postulated that octahedral, tetrahedral and square planar geometrical shapes are more common in coordination compounds of ________
14. What is the primary valence of iron in the coordination entity of compound Fe4[Fe(CN)6]3?

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