If half mole of oxygen gas combine with Al to form , the weight of Al used in the reaction is:

Question

**Options:**
- **A.** [object Object]
- **B.** [object Object]
- **C.** [object Object]
- **D.** [object Object]

---
**Difficulty:** EASY | **Chapter:** Mole concept | **Topic:** Law of chemical combination, atomic & molecular mass, mole concept, calculations

Accepted Answer

## ✅ Correct Answer: **D**

### 📖 Detailed Explanation:
This question uses gaseous state & mole concept. Relate mass, moles and number of particles using the mole concept and basic stoichiometry; doing the algebra gives the value listed in option D.

---
*This is an official solution provided by Chem Mantra. For more chemistry questions and solutions, explore our [question bank](/courses).*

If half mole of oxygen gas combine with Al to form , the weight of Al used in the reaction is:

Official Solution

Want More Practice Questions?

Related Topics