GaAs is-

Options

A. an elemental semiconductor
B. a compound semiconductor
C. an insulator
D. a metallic semiconductor

Answer

To determine the classification of gallium arsenide (GaAs), we can follow these steps:

### Step 1: Identify the Composition of GaAs
Gallium arsenide is composed of two elements: gallium (Ga) and arsenic (As).

### Step 2: Determine the Nature of the Elements
Gallium is a metal, while arsenic is a metalloid. When combined, they form a compound.

### Step 3: Classify GaAs
Since GaAs is formed from two different elements, it is classified as a compound.

### Step 4: Analyze Semiconductor Properties
GaAs exhibits semiconductor behavior. This is due to its ability to conduct electricity under certain conditions, which is a characteristic of semiconductors.

### Step 5: Conclusion
Based on the above analysis, gallium arsenide is classified as a compound semiconductor.

### Final Answer
Gallium arsenide (GaAs) is a compound semiconductor.

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