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Questions and Answers
Who was the first chemist to formulate ideas about the structures of coordination compounds?
Who was the first chemist to formulate ideas about the structures of coordination compounds?
- Dmitri Mendeleev
- Louis Pasteur
- Alfred Werner (correct)
- Marie Curie
What did Alfred Werner propose in relation to metal ions in coordination compounds?
What did Alfred Werner propose in relation to metal ions in coordination compounds?
- Secondary valence only
- Both primary and secondary valence (correct)
- Primary valence only
- Tertiary valence
How many primary valences do CoCl2 and PdCl2 have according to Alfred Werner?
How many primary valences do CoCl2 and PdCl2 have according to Alfred Werner?
- CoCl2 - 4, PdCl2 - 4
- CoCl2 - 1, PdCl2 - 1
- CoCl2 - 3, PdCl2 - 2 (correct)
- CoCl2 - 2, PdCl2 - 3
In Werner's experiments with cobalt(III) chloride and ammonia, what was observed when excess silver nitrate was added?
In Werner's experiments with cobalt(III) chloride and ammonia, what was observed when excess silver nitrate was added?
How many moles of silver chloride (AgCl) are formed when reacting 1 mol of CoCl3.6NH3 (Yellow) according to the observations by Alfred Werner?
How many moles of silver chloride (AgCl) are formed when reacting 1 mol of CoCl3.6NH3 (Yellow) according to the observations by Alfred Werner?
Based on Werner's theory, how many groups remain bonded to the cobalt ion during the reaction in coordination compounds?
Based on Werner's theory, how many groups remain bonded to the cobalt ion during the reaction in coordination compounds?
According to Werner's theory of coordination compounds, what is the primary valence satisfied by?
According to Werner's theory of coordination compounds, what is the primary valence satisfied by?
What term is used for compounds like [CoCl3.4NH3] which have the same empirical formula but different properties?
What term is used for compounds like [CoCl3.4NH3] which have the same empirical formula but different properties?
What is the secondary valence in coordination compounds according to Werner's theory?
What is the secondary valence in coordination compounds according to Werner's theory?
In the context of coordination compounds, what are coordination polyhedra?
In the context of coordination compounds, what are coordination polyhedra?
Which geometrical shapes did Werner postulate as more common in coordination compounds of transition metals?
Which geometrical shapes did Werner postulate as more common in coordination compounds of transition metals?
How do double salts differ from complex ions in terms of dissociation in water?
How do double salts differ from complex ions in terms of dissociation in water?
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