Which of the following stateement is incorrect

Options

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

Answer

To solve the question regarding which statement is incorrect, we will analyze each statement one by one.

1. **Silver glance mainly contains silver sulphide.**
- The chemical formula for silver glance is Ag2S, which is indeed silver sulphide.
- **Conclusion:** This statement is correct.

2. **Gold is found in native state.**
- Gold is often found in its native state, meaning it is found in nature in its elemental form, not combined with other elements.
- **Conclusion:** This statement is correct.

3. **Zinc blend mainly contains zinc chloride.**
- Zinc blend, also known as zinc sulfide, has the chemical formula ZnS. It does not contain zinc chloride (ZnCl2).
- **Conclusion:** This statement is incorrect.

4. **Copper pyrite also contains Fe2S3.**
- Copper pyrite has the chemical formula CuFeS2. It does not contain Fe2S3; rather, it contains iron (Fe) and sulfur (S) in a different ratio.
- **Conclusion:** This statement is also incorrect.

Now, we summarize the findings:
- Statement 1: Correct
- Statement 2: Correct
- Statement 3: Incorrect (Zinc blend is ZnS, not ZnCl2)
- Statement 4: Incorrect (Copper pyrite is CuFeS2, not containing Fe2S3)

Thus, the incorrect statements are C and D.

**Final Answer:** The incorrect statements are C and D.

---