Question

According to Werner’s theory of coordination compounds:

• A. Primary valences are ionisable.
• B. Secondary valences are ionisable.
• C. Both primary and secondary valences are non-ionisable.
• D. Both primary and secondary valences are ionisable.

Hint:

Werner’s theory distinguishes between primary valences (oxidation state) and secondary valences (coordination number), which are essential to understanding coordination compounds.

Answer 1

The Correct Option is A

According to Werner’s theory, primary valences are ionisable and typically correspond to the oxidation state of the central metal ion in the coordination compound. Secondary valences are non-ionisable and correspond to the coordination number, which represents the number of ligands bound to the metal ion. Hence, the primary valences are ionisable, and secondary valences are not.