Which of the following metal is found in free stage?

Options

A. Copper
B. Iron
C. Zinc
D. Lead

Explanation

To determine which metal is found in its free state, we need to analyze the reactivity of the given metals and understand what "free state" means.

### Step-by-Step Solution:

1. **Understand Free State**: Free state refers to metals that are found in their natural, uncombined form. These metals do not react readily with other elements and are often found in nature as pure metals.

2. **Identify Given Metals**: The options provided are copper (Cu), iron (Fe), zinc (Zn), and lead (Pb).

3. **Reactivity Series**: Metals can be arranged in a reactivity series, which ranks metals from most reactive to least reactive. The least reactive metals are more likely to be found in their free state.

4. **Analyze Each Metal**:
- **Copper (Cu)**: Copper is relatively unreactive and can be found in its native form.
- **Iron (Fe)**: Iron is quite reactive and usually found in compounds like iron oxide.
- **Zinc (Zn)**: Zinc is also reactive and does not typically occur in its free state.
- **Lead (Pb)**: Lead is less reactive than iron and zinc but more reactive than copper.

5. **Conclusion**: Among the given options, copper (Cu) is the least reactive metal and is most commonly found in its free state.

### Final Answer: Copper (Cu) is the metal found in free state.

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