Question detail
What is the acid-base behavior of SiO2 when reacted with water?
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. Does not react
- B. Forms a strong acid
- C. Forms a weak acid
- D. Forms a neutral solution
Answer
Does not react
Explanation
The correct option is Does not react. Does not react is the best answer because it directly supports the AQA A-Level Chemistry objective to explain acid-base behaviour of Period 3 oxides. This reasoning is anchored to Period 3 oxides (A-level only) in Properties of Period 3 elements and their oxides (A-level only), and it separates Period 3 oxide from similar A-Level ideas rather than relying on a vague recall statement. Other options are weaker if they use the wrong evidence, calculation, mechanism, observation, unit, or conclusion for this subtopic.
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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