Consider the following statements ,
I. In coordination compounds , metals show two types of linkage ( valencies ) .
II. The primary valencies are normallt ionisable and are satisfied by negative ions.
the correct statement(s) is / are

Options

A. only I
B. only II
C. both I and II
D. neither I nor II

Explanation

To analyze the given statements regarding coordination compounds, let's break down the information step by step.

### Step 1: Understanding the Statements
- **Statement I**: In coordination compounds, metals show two types of linkage (valencies).
- **Statement II**: The primary valencies are normally ionizable and are satisfied by negative ions.

### Step 2: Evaluating Statement I
- According to Werner's theory, coordination compounds indeed have two types of valencies: primary and secondary.
- **Primary Valency**: This is related to the oxidation state of the metal and is satisfied by negative ions.
- **Secondary Valency**: This relates to the coordination number of the metal and is satisfied by neutral or negative ligands.
- **Conclusion for Statement I**: This statement is **correct**.

### Step 3: Evaluating Statement II
- The primary valencies are indeed ionizable, meaning they can dissociate in solution.
- They are satisfied by negative ions (anions) that balance the positive charge of the metal.
- **Conclusion for Statement II**: This statement is also **correct**.

### Final Conclusion
Both statements I and II are correct.

### Summary of the Solution
- **Statement I**: Correct (Two types of valencies exist in coordination compounds).
- **Statement II**: Correct (Primary valencies are ionizable and satisfied by negative ions).