A rock from which a metal can be extracted profitbaly , is called an_______of the metal .

Options

A. ore
B. hematite
C. gangue
D. galena

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the term used to describe a rock from which a metal can be extracted profitably.

2. **Identifying Key Terms**: The key terms in the question are "rock," "metal," and "profitably." This indicates that we are looking for a specific type of rock that contains metal in a form that can be economically extracted.

3. **Defining the Term**: In chemistry and geology, the term used for a naturally occurring solid material from which a metal can be extracted profitably is known as an "ore."

4. **Examples of Ores**: To illustrate, we can mention specific examples of ores for common metals. For instance, hematite and magnetite are ores from which iron (Fe) can be extracted profitably.

5. **Final Answer**: Therefore, the answer to the question is: "A rock from which a metal can be extracted profitably is called an **ore** of the metal."

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