Question detail
In the reaction 3A + 2B → 4C, if you have 6 moles of A and 5 moles of B, which reactant is the limiting reagent (A-level cue 7ef2967f focus)
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Amount of substance
Question
- A. B
- B. A (A-level cue 7ef2967f distractor 1)
- C. C (A-level cue 7ef2967f distractor 2)
- D. None of the above (A-level cue 7ef2967f distractor 3)
Answer
B
Explanation
The correct option is B. B is correct because it supports the objective: Use balanced equations to identify limiting reagents.. The reasoning stays within Balanced equations and reacting quantities and avoids drifting into a similar A-Level Chemistry idea. This version is uniquely anchored to Balanced equations and reacting quantities. Retrieval anchor: A-level cue 7ef2967f.
Common mistake
Identifying Limiting Reagents
Students often confuse the limiting reagent with the excess reagent when using balanced equations.
To correctly identify the limiting reagent, use the balanced equation to calculate the moles of each reactant. The limiting reagent is the one that produces the least amount of product based on the stoichiometric ratios.
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