Question

Which one of the following statements is incorrect about werner’s theory?

• A. Primary valency is the same thing as oxidation state
• B. Secondary valency is the same thing as coordination number
• C. Secondary valencies are satisfied by negative ions only
• D. Secondary valencies are directional whereas primary valencies are non-directional

Answer 1

The correct option is C Secondary valencies are satisfied by negative ions only

Secondary valancy can be satisfied by cation, amion and neutral species.