Question

Which of the following statements are true regarding Werner's theory are true?
$\left(1\right)$ Ligands are connected to the metal ions by covalent bonds
$\left(2\right)$ Secondary valencies have directional properties
$\left(3\right)$ Secondary valencies are non- ionizable

• A. 1, 2 and 3 are correct
• B. 2 and 3 are correct
• C. 1 and 3 are correct
• D. 1 and 2 are correct

Answer 1

Answer: (B)

2 and 3 are correct

According Werner's theory Ligands are connected to the metal ions by coordinate bonds.
The primary valencies are non-directional whereas secondary valencies have directional properties.
The primary valencies are ionizable whereas secondary valencies are non-ionisable.
Thus, statements 2 and 3 are correct.

Hence, the correct option is $\text{B}$