Question
Chemistry Question on coordination compounds
According to Werner's theory, the primary valencies of the central metal atom
A
are satisfied by negative ions
B
are satisfied by negative ions or neutral molecule
C
decide the geometry of the complex
D
are equal to its coordination number
Answer
are satisfied by negative ions
Explanation
Solution
Primary valencies are ionizable. If the complex ion exhibits positive charge, then primary valence corresponds to the number of charges present and is balanced by the same number of negative ions. Hence, primary valency can also be defined by the number of anions neutralizing the charge on the complex.