Question detail
A student is revising Energy transfer during exothermic and endothermic reactions. Which correction best fixes a mistake about exothermic reaction?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Exothermic and endothermic reactions
Question
- A. exothermic reaction: correct Unit 4.5 answer for Energy transfer during exothermic and endothermic reactions
- B. Incorrect correction: repeats the misconception without fixing the energy idea
- C. Incorrect correction: changes the topic to a different Chemistry unit
- D. Incorrect correction: ignores the named process in Energy transfer during exothermic and endothermic reactions
Answer
The correct option is exothermic reaction: correct Unit 4.5 answer for Energy transfer during exothermic and endothermic reactions.
Explanation
The correct option is exothermic reaction: correct Unit 4.5 answer for Energy transfer during exothermic and endothermic reactions. It directly supports the approved learning objective to identify combustion, many oxidation reactions and neutralisation as examples of exothermic reactions. This application version keeps the answer anchored to Energy transfer during exothermic and endothermic reactions within Exothermic and endothermic reactions, 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
Misidentifying a neutralisation as endothermic
Students often think that a neutralisation reaction, such as mixing an acid with a base, absorbs heat and is therefore endothermic.
Explain that neutralisation releases heat to the surroundings, making it an exothermic reaction, and that the temperature of the solution rises during the process.
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