Question detail

Which comparison keeps chemistry only separate from a nearby Unit 4.5 idea?

Try the question, check the answer, then read the explanation to understand the curriculum point.

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At a glance

MCQ

Type

practice

Style

Topic

Chemical cells and fuel cells (chemistry only)

Question

A. chemistry only: correct Unit 4.5 answer for Cells and batteries
B. Incorrect comparison: says the two nearby ideas mean the same thing
C. Incorrect comparison: uses the same evidence for exothermic and endothermic cases
D. Incorrect comparison: ignores the direction of energy transfer

Answer

The correct option is chemistry only: correct Unit 4.5 answer for Cells and batteries.

Explanation

The correct option is chemistry only: correct Unit 4.5 answer for Cells and batteries. It directly supports the approved learning objective to (chemistry only) Describe safe and careful use of liquids when investigating cells. (AT 6). This comparison version keeps the answer anchored to Cells and batteries within Chemical cells and fuel cells (chemistry only), and avoids mixing energy transfer, reaction profiles, activation energy, chemical cells, fuel cells, exothermic reactions and endothermic reactions unless the objective names them.

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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For Cells and batteries, which answer best supports this AQA GCSE Chemistry Unit 4.5 objective: (chemistry only) Describe safe and careful use of liquids when investigating cells. (AT 6)?