The arrangement of `Cl^(-)` ions in CsCl structure is-

Options

A. h.c.p
B. simple cubic
C. f.c.c
D. b.c.c

Answer

To determine the arrangement of \( \text{Cl}^- \) ions in the CsCl structure, we can follow these steps:

### Step 1: Understand the CsCl Structure
The CsCl structure consists of cesium ions (\( \text{Cs}^+ \)) and chloride ions (\( \text{Cl}^- \)). In this structure, the cesium ions are located at the body center of the unit cell, while the chloride ions are positioned at the corners.

### Step 2: Visualize the Unit Cell
In a cubic unit cell, there are 8 corners. Each corner of the cube will have a \( \text{Cl}^- \) ion. Thus, if we visualize a cube, we can place a \( \text{Cl}^- \) ion at each of the 8 corners.

### Step 3: Identify the Type of Unit Cell
Since the \( \text{Cl}^- \) ions occupy the corners of the cube, the arrangement of \( \text{Cl}^- \) ions forms a simple cubic unit cell. This is because all the ions at the corners are identical and contribute to the overall structure.

### Step 4: Conclusion
Therefore, the arrangement of \( \text{Cl}^- \) ions in the CsCl structure is a simple cubic unit cell.

### Final Answer
The arrangement of \( \text{Cl}^- \) ions in CsCl structure is a **simple cubic unit cell**.

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