Which of the following statement is incorrect?

Options

A. 1. Silver glance mainly contains silver sulphide
B. 2. Zinc blende mainly contains zinc sulphide
C. 3. Gold is found in native state.
D. 4. Copper pyrites also contains `Fe_(2) S_(3)`

Explanation

To determine which statement is incorrect, we will analyze each option step by step.

### Step 1: Analyze the First Option
**Statement:** Silver glance mainly contains silver sulfide.

- **Explanation:** The chemical formula for silver glance is Ag2S, which indicates that it is indeed composed of silver (Ag) and sulfur (S). Therefore, this statement is correct.

### Step 2: Analyze the Second Option
**Statement:** Zinc blend mainly contains zinc sulphide.

- **Explanation:** The chemical formula for zinc blend is ZnS, confirming that it is primarily made up of zinc (Zn) and sulfur (S). Hence, this statement is also correct.

### Step 3: Analyze the Third Option
**Statement:** Gold is found in native state.

- **Explanation:** Gold is known as a noble metal due to its high stability and resistance to corrosion, which allows it to be found in its native state in nature. Thus, this statement is correct.

### Step 4: Analyze the Fourth Option
**Statement:** Copper pyrite also contains Fe2S3.

- **Explanation:** The correct formula for copper pyrite is CuFeS2, which indicates that it contains copper (Cu), iron (Fe), and sulfur (S). The statement claims it contains Fe2S3, which is incorrect. Therefore, this statement is incorrect.

### Conclusion
After analyzing all the options, we find that the fourth option is the incorrect statement.

**Incorrect Statement:** Copper pyrite also contains Fe2S3.

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