Question detail
For Electrolysis of molten ionic compounds, which reaction focus answer best supports this Unit 4.4 objective: Predict that a non-metal forms at the anode when a molten ionic compound is electrolysed?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Electrolysis
Question
- A. Negative ions lose electrons at the anode. - correct reaction focus for molten ionic compound
- B. Wrong reaction focus: confuses molten ionic compound with a nearby Unit 4.4 chemical change idea
- C. Wrong particle check: uses the wrong ion, electrode, acid-base term, or product for Electrolysis of molten ionic compounds
- D. Wrong reaction link: does not support Predict that a non-metal forms at the anode when a molten ionic compound is electrolysed
Answer
The correct option is Negative ions lose electrons at the anode. - correct reaction focus for molten ionic compound.
Explanation
The correct option is Negative ions lose electrons at the anode. - correct reaction focus for molten ionic compound. Negative ions lose electrons at the anode. - correct reaction focus for molten ionic compound is correct because it directly supports the approved learning objective to predict that a non-metal forms at the anode when a molten ionic compound is electrolysed. This reaction focus variant asks students to separate molten ionic compound from similar Unit 4.4 chemical-change ideas. The reasoning belongs to Electrolysis of molten ionic compounds within Electrolysis, so it should not be confused with nearby ideas about acids, alkalis, bases, oxidation, reduction, displacement, reactivity, electrolysis, electrodes, ions, pH, or salt preparation unless those are named in the objective. Use the focus term molten ionic compound to keep the answer aligned with AQA GCSE Chemistry 8462 Unit 4.4 Chemical changes. Keep acid, alkali and base distinct; keep oxidation and reduction distinct; do not mix reduction with displacement; keep electrolysis separate from electroplating; distinguish anode from cathode, positive ions from negative ions, oxidation state from ionic charge, and strong acid from concentrated acid. The other options are weaker because they either use the wrong reaction type, wrong ion, wrong electrode, wrong acid-base distinction, vague wording, or the wrong chemical-change context.
Common mistake
Confusing Anode and Cathode Products
Students often predict that a metal forms at the anode during the electrolysis of molten ionic compounds.
Remember that a non-metal is produced at the anode, while a metal is formed at the cathode.
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