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Copper is prepared as alloying element i...

Copper is prepared as alloying element in ornamental gold. Why? 

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### Step-by-Step Text Solution: 1. **Identify the Elements**: Copper (Cu) and Gold (Au) are both d-block elements in the periodic table. 2. **Group Placement**: Copper is located in the same group as gold. This means they share similar chemical properties. 3. **Valency Consideration**: One of the key requirements for an effective alloying element is that it should have a similar valency to the primary metal. ...
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