Which of the given statement is not true ?

Options

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

Answer

To solve the question "Which of the given statements is not true?", we will evaluate each statement one by one.

### Step 1: Evaluate Statement 1
**Statement 1:** Copper pyrite also contains FeS2.

- **Analysis:** Copper pyrite, also known as chalcopyrite, has the chemical formula CuFeS2. It does not contain FeS2 (which is the formula for pyrite). Therefore, this statement is misleading.
- **Conclusion:** This statement is **not true**.

### Step 2: Evaluate Statement 2
**Statement 2:** Zinc blend mainly contains zinc chloride.

- **Analysis:** Zinc blend, also known as zinc sulfide, has the chemical formula ZnS. It does not contain zinc chloride (ZnCl2). Thus, this statement is also misleading.
- **Conclusion:** This statement is **not true**.

### Step 3: Evaluate Statement 3
**Statement 3:** Gold is found in negative state.

- **Analysis:** Gold is a noble metal and is found in its elemental (free) state due to its low reactivity. It is often found as Au, which does not indicate a negative state in terms of oxidation. However, it is often referred to as being found in a "native" state.
- **Conclusion:** This statement is **true**.

### Step 4: Evaluate Statement 4
**Statement 4:** Silver glands mainly contain silver sulfide.

- **Analysis:** Silver glands, or argentite, has the chemical formula Ag2S, which is indeed silver sulfide. Therefore, this statement is accurate.
- **Conclusion:** This statement is **true**.

### Final Conclusion
After evaluating all statements, we find that **Statement 2** is the one that is not true, as zinc blend does not contain zinc chloride but rather zinc sulfide.

### Answer:
**The statement that is not true is Statement 2: Zinc blend mainly contains zinc chloride.**

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