The coordination complex among the following that does not precipitate with \(\mathrm{AgNO}_3\) solution is:

1. \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right] \mathrm{Cl}_3 \)
2. \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5 \mathrm{Cl}\right] \mathrm{Cl}_2\)
3. \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_4 \mathrm{Cl}_2\right] \mathrm{Cl}\)
4. \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_3 \mathrm{Cl}_3\right]\)
Subtopic:  Werner’s Theory |
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The sum of x + y in [Co(NH3)5Cl]Cl2, where x denotes the primary valency and y represents the secondary valency of the central metal ion, is:
1. 6
2. 9
3. 5
4. 3
Subtopic:  Werner’s Theory |
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Which of the following statements are correct?
a. Primary valencies are satisfied by negative ions while secondary valencies are satisfied by negative ion only. 
b. A metal ion has a definite number of secondary valencies around the central atom. 
c. Primary valencies are usually ionizable, while secondary valencies are non-ionizable

Choose the correct option:

1. a and b 2. a and c
3. b and c 4. a, b and c
Subtopic:  Werner’s Theory |
 79%
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