Select the incorrect match.

Options

A. A metal used in joining electric wires - Magnesium
B. A metal whose oxide is soluble in both acids and bases - Zinc
C. A metal unreactive towards oxygen and dilute acids - Gold
D. A metal extracted by using electrolytic reduction - Aluminium

Explanation

To solve the question "Select the incorrect match," we will analyze each option provided and determine which one does not correctly match the description given.

### Step-by-Step Solution:

1. **Analyze Option 1: Metal used in joining electric wires - Magnesium**
- Magnesium is suggested as the metal used for electric wires. However, the correct metal used for making electric wires is copper due to its high ductility, tensile strength, and excellent conductivity. Therefore, this option is incorrect.

2. **Analyze Option 2: A metal whose oxide is soluble in both acids and bases - Zinc**
- Zinc oxide is known to be amphoteric, meaning it can react with both acids and bases. This makes zinc a correct match for this description. Therefore, this option is correct.

3. **Analyze Option 3: A metal unreactive towards oxygen and dilute acids - Gold**
- Gold is classified as a noble metal, which is known for its inertness and low reactivity. It does not react with oxygen or dilute acids, making this option correct.

4. **Analyze Option 4: A metal extracted by using electrolytic reduction - Aluminum**
- Aluminum is indeed a highly electro-positive metal and is extracted using the electrolytic reduction method. This option is also correct.

### Conclusion:
After analyzing all the options, we find that the incorrect match is **Option 1: Magnesium** as the metal used in joining electric wires.

### Final Answer:
The incorrect match is **Option 1: Magnesium**.

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