Which of the sulphides of group II is orange ?

Options

A. CuS
B. CdS
C. `As_(2)S_(3)`
D. `Sb_(2)S_(3)`

Answer

To determine which of the sulphides of group II is orange, we will analyze the given options one by one.

### Step 1: Identify the sulphides in the options
The options given are:
1. CuS (Copper Sulphide)
2. CdS (Cadmium Sulphide)
3. As2S3 (Arsenic Sulphide)
4. Sb2S3 (Antimony Sulphide)

### Step 2: Analyze the color of each sulphide
- **CuS (Copper Sulphide)**: This sulphide is known to form a black precipitate. Therefore, it does not match the orange color.

- **CdS (Cadmium Sulphide)**: This sulphide is known to be yellow. So, it is also not the correct answer.

- **As2S3 (Arsenic Sulphide)**: This compound is also yellow in color. Thus, it is not the orange sulphide we are looking for.

- **Sb2S3 (Antimony Sulphide)**: This sulphide is known to be orange in color.

### Step 3: Conclusion
Among the given options, the only sulphide that is orange is **Sb2S3 (Antimony Sulphide)**.

Thus, the correct answer is **option 4: Sb2S3 (Antimony Sulphide)**.

---