Cobalt(III) chloride forms several octahedral complexes with ammonia. Which of the following will not give test for chloride ions with silver nitrate at 25°C ?
CoCl3- 5NH3
CoCl3- 6NH3
CoCl3- 3NH3
CoCl3- 4NH3
As we discussed in the concept
Werner's Theory and it's limitation -
Postulates of Werner's theory
Limitations of Warner's theory
- wherein
Eg. ,Secondary valency = 4 and these are satisfy by neutral molecule or negative ion.
Primary valency is satisfy by negative ion.
give white precipitate with AgNo3 but
does not give white ppt with AgNo3
Option 1)
CoCl3- 5NH3
Option is incorrect
Option 2)
CoCl3- 6NH3
Option is incorrect
Option 3)
CoCl3- 3NH3
Option is correct
Option 4)
CoCl3- 4NH3
Option is incorrect