Which of the following is different from other three oxides?

Options

A. MgO
B. SnO
C. ZnO
D. PbO

Answer

To determine which oxide is different from the others, we will analyze the properties of each oxide given: magnesium oxide (MgO), tin oxide (SnO), zinc oxide (ZnO), and lead oxide (PbO).

### Step-by-Step Solution:

1. **Identify the Oxides**:
- We have four oxides:
- Magnesium oxide (MgO)
- Tin oxide (SnO)
- Zinc oxide (ZnO)
- Lead oxide (PbO)

2. **Classify Each Oxide**:
- **Magnesium Oxide (MgO)**:
- Magnesium is an alkaline earth metal.
- The oxides of alkaline earth metals are typically basic in nature.
- Therefore, MgO is a basic oxide.

- **Tin Oxide (SnO)**:
- Tin can exhibit both metallic and non-metallic properties.
- Tin oxide is classified as an amphoteric oxide, meaning it can react with both acids and bases.

- **Zinc Oxide (ZnO)**:
- Zinc is also a metal and its oxide is amphoteric.
- ZnO can react with acids and bases, displaying both acidic and basic properties.

- **Lead Oxide (PbO)**:
- Lead oxide is also considered amphoteric.
- It can react with both acids and bases similar to SnO and ZnO.

3. **Comparison**:
- Now, we compare the classifications:
- MgO is a basic oxide.
- SnO, ZnO, and PbO are amphoteric oxides.

4. **Conclusion**:
- Since magnesium oxide is basic and the other three oxides (tin oxide, zinc oxide, and lead oxide) are amphoteric, we conclude that magnesium oxide is different from the other three.

### Final Answer:
Magnesium oxide (MgO) is different from the other three oxides (SnO, ZnO, PbO) because it is a basic oxide, while the others are amphoteric oxides.

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