Question detail
For The process of electrolysis, which reaction focus answer best supports this Unit 4.4 objective: Explain why ionic compounds must be molten or dissolved in water for electrolysis to occur?
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. Ions are immobilised and cannot move - correct reaction focus for electrolysis
- B. Wrong reaction focus: confuses electrolysis with a nearby Unit 4.4 chemical change idea
- C. Wrong particle check: uses the wrong ion, electrode, acid-base term, or product for The process of electrolysis
- D. Wrong reaction link: does not support Explain why ionic compounds must be molten or dissolved in water for electrolysis to occur
Answer
The correct option is Ions are immobilised and cannot move - correct reaction focus for electrolysis.
Explanation
The correct option is "Ions are immobilised and cannot move - correct reaction focus for electrolysis" because it supports the approved learning objective: Explain why ionic compounds must be molten or dissolved in water for electrolysis to occur. The other options are incorrect or weaker because they are vague, use the wrong Chemistry context, or do not clearly explain the answer for The process of electrolysis.
Common mistake
Understanding Electrolysis Conditions
Students often think that ionic compounds can conduct electricity in solid form, not realizing they must be molten or dissolved in water.
Emphasize that ionic compounds need to be in a molten state or dissolved in water to allow ions to move freely, enabling the conduction of electricity.
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