Question detail
Bond-making check. In Cells and batteries, a question asks what happens when product bonds form. Which conclusion best supports chemistry only?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Chemical cells and fuel cells (chemistry only)
Question
- A. Bond-making check: Energy is released when bonds form in the products.
- B. Energy must always be supplied when product bonds form.
- C. Bond making is unrelated to overall energy change.
- D. Bond making only happens in fuel cells.
Answer
The correct option is Bond-making check: Energy is released when bonds form in the products..
Explanation
The correct option is Bond-making check: Energy is released when bonds form in the products.. This scenario keeps the answer anchored to Cells and batteries in Chemical cells and fuel cells (chemistry only). It supports chemistry only without repeating the same wording as nearby Energy changes questions, and it separates exothermic, endothermic, activation-energy, bond-energy, cell and fuel-cell ideas.
Common mistake
Mixing up safe handling of acids and bases
Students often think that all liquids used in simple cells are harmless and can be handled without precautions, or they treat acidic and basic electrolytes the same way, ignoring the risk of splashes and corrosion.
Remind students that electrolytes can be acidic, basic or neutral, and that acidic or basic solutions can be corrosive or cause skin irritation. They should wear appropriate PPE (gloves, goggles, lab coat), use a fume hood or well‑ventilated area, and handle all liquids carefully to avoid splashes or spills. Emphasise that safety procedures are required for all liquids, not just for the cell’s operation.
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