Question

The correct set that contains all kinds of oxides (Basic, acidic, amphoteric, and neutral) is:

• A. \( \text{Na}_2\text{O}, \, \text{N}_2\text{O}, \, \text{Al}_2\text{O}_3, \, \text{CO} \)
• B. \( \text{Al}_2\text{O}_3, \, \text{As}_2\text{O}_3, \, \text{CO}, \, \text{NO} \)
• C. \( \text{K}_2\text{O}, \, \text{Cl}_2\text{O}_7, \, \text{As}_2\text{O}_3, \, \text{NO} \)
• D. \( \text{Na}_2\text{O}, \, \text{K}_2\text{O}, \, \text{Al}_2\text{O}_3, \, \text{As}_2\text{O}_3 \)

Hint:

When identifying types of oxides, remember the general behavior of oxides: metals tend to form basic oxides, non-metals form acidic oxides, amphoteric oxides can act as both acids and bases, and neutral oxides do not react significantly with water.

Answer 1

The Correct Option is C

Step 1: Types of oxides.
- Basic oxides are formed by metals and react with water to form bases. Examples: \( \text{Na}_2\text{O}, \text{K}_2\text{O} \).
- Acidic oxides are formed by non-metals and react with water to form acids. Examples: \( \text{CO}_2, \text{SO}_2 \).
- Amphoteric oxides are oxides that can act as both acids and bases. Examples: \( \text{Al}_2\text{O}_3, \text{As}_2\text{O}_3 \).
- Neutral oxides do not react with water to form an acid or base. Examples: \( \text{CO}, \text{NO} \).
Step 2: Analyze the given options.
1. \( \text{Na}_2\text{O}, \text{N}_2\text{O}, \text{Al}_2\text{O}_3, \text{CO} \):
- \( \text{Na}_2\text{O} \) is basic,
- \( \text{N}_2\text{O} \) is neutral,
- \( \text{Al}_2\text{O}_3 \) is amphoteric,
- \( \text{CO} \) is neutral.
This set contains all types of oxides: basic, acidic, amphoteric, and neutral. 2. \( \text{Al}_2\text{O}_3, \text{As}_2\text{O}_3, \text{CO}, \text{NO} \):
- \( \text{Al}_2\text{O}_3 \) is amphoteric,
- \( \text{As}_2\text{O}_3 \) is amphoteric,
- \( \text{CO} \) is neutral,
- \( \text{NO} \) is neutral.
This set only contains amphoteric and neutral oxides, missing basic and acidic oxides. 3. \( \text{K}_2\text{O}, \text{Cl}_2\text{O}_7, \text{As}_2\text{O}_3, \text{NO} \):
- \( \text{K}_2\text{O} \) is basic,
- \( \text{Cl}_2\text{O}_7 \) is acidic,
- \( \text{As}_2\text{O}_3 \) is amphoteric,
- \( \text{NO} \) is neutral.
This set contains all types of oxides: basic, acidic, amphoteric, and neutral. 4. \( \text{Na}_2\text{O}, \text{K}_2\text{O}, \text{Al}_2\text{O}_3, \text{As}_2\text{O}_3 \):
- \( \text{Na}_2\text{O} \) is basic,
- \( \text{K}_2\text{O} \) is basic,
- \( \text{Al}_2\text{O}_3 \) is amphoteric,
- \( \text{As}_2\text{O}_3 \) is amphoteric.
This set is missing neutral and acidic oxides.
Step 3: Conclusion.
The correct set that contains all types of oxides (basic, acidic, amphoteric, and neutral) is option (C).
Final Answer: (C) \( \text{K}_2\text{O}, \text{Cl}_2\text{O}_7, \text{As}_2\text{O}_3, \text{NO} \)