Pitch blende is an ore of

Answer

**Step-by-Step Solution:**

1. **Understanding the Concept of Ore:**
- An ore is defined as a naturally occurring solid material from which a metal or valuable mineral can be extracted profitably.

2. **Identifying Pitch Blende:**
- Pitch blende is a specific mineral that is known to contain a significant amount of a particular metal.

3. **Chemical Composition of Pitch Blende:**
- The chemical formula for pitch blende is U3O8. This indicates that it is a compound containing uranium and oxygen.

4. **Classification of Pitch Blende:**
- Pitch blende is classified as an oxidized ore, meaning the metal (uranium) is present in the form of an oxide.

5. **Conclusion:**
- Based on its chemical composition and classification, pitch blende is recognized as an ore of uranium.

**Final Answer:**
Pitch blende is an ore of uranium.

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