Question detail
Which of the following oxides is a basic oxide (A-level cue dba37293 focus)
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Properties of Period 3 elements and their oxides (A-level only)
Question
- A. Na2O
- B. Al2O3 (A-level cue dba37293 distractor 1)
- C. P4O10 (A-level cue dba37293 distractor 2)
- D. SO2 (A-level cue dba37293 distractor 3)
Answer
Na2O
Explanation
The correct option is Na2O. Na2O is correct because it supports the objective: Explain acid-base behaviour of Period 3 oxides.. The reasoning stays within Period 3 oxides (A-level only) and avoids drifting into a similar A-Level Chemistry idea. This version is uniquely anchored to Period 3 oxides (A-level only). Retrieval anchor: A-level cue dba37293.
Common mistake
Misunderstanding Acid-Base Behavior
Students often confuse the acid-base behavior of Period 3 oxides, thinking all oxides are either acidic or basic without considering their specific properties.
To correct this, students should study the specific oxides of Period 3, such as Na2O (basic), MgO (basic), Al2O3 (amphoteric), SiO2 (neutral), P4O10 (acidic), SO3 (acidic), and understand how their bonding and structure influence their acid-base behavior. Keep the correction anchored to Period 3 oxides (A-level only) and the objective: Explain acid-base behaviour of Period 3 oxides.
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