Question

6.In the complex, the primary valency of a metal is always ________.

Answer 1

Answer:

In complex, the primary valence of the metal is always ionic.

Explanation:

A metal loses electrons and becomes positively charged, which can only be neutralised by interacting with negatively charged ions.

Answer 2

Answer:

The primary valence is always ionizable.

Explanation:

According to Werner's theory:

• The primary valencies of a central metal ion in a complex compound can be satisfied by negative ions.
• Example- in $CoCl_{3}$ and $AgCl$, the primary valencies of $Co$ and $Ag$  are 3 and 1.
• They correspond to the oxidation state of the metal and are ionizable.
• They are non-directional.
• They are attached to the cation through dotted lines when a structure of a complex is drawn.

Conclusion:

In the complex, the primary valency of metal is always ionizable.