Question detail

Case 82 exam-language. Which response would earn credit for the calculation method? Focus on why reactions high atom economy can economically in Atom economy, not on a neighbouring Unit 4.3 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

Yield and atom economy of chemical reactions (chemistry only)

Question

A. Case 82 exam-language: Show formula, substitution, calculation, final answer, and unit for why reactions high atom economy can economically
B. Case 82 exam-language: Write only the final answer with no working (Atom economy)
C. Case 82 exam-language: Describe the practical method instead of the calculation relationship (why reactions high atom economy can economically)
D. Case 82 exam-language: Quote the topic title without applying it to the data (Yield and atom economy of chemical reactions (chemistry only))

Answer

The correct option is Case 82 exam-language: Show formula, substitution, calculation, final answer, and unit for why reactions high atom economy can economically.

Explanation

The correct option is Case 82 exam-language: Show formula, substitution, calculation, final answer, and unit for why reactions high atom economy can economically. It supports the approved learning objective by keeping the method tied to why reactions high atom economy can economically in Atom economy. The other options are incorrect because they either use the wrong quantitative relationship, lose the required unit, confuse coefficients with subscripts, or report an answer without a complete worked method.

Common mistake

Misunderstanding Economic Importance

Students often confuse the concept of atom economy with overall yield, thinking that a high yield alone indicates economic importance.

Emphasize that atom economy specifically measures how much of the starting materials are converted into useful products, which is crucial for sustainability and cost-effectiveness in industrial processes. Keep the correction anchored to Atom economy; check formula, substitution, calculation, final answer, and unit where relevant.

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For Atom economy, which option best supports this Unit 4.3 objective: (chemistry only) Explain why reactions with high atom economy can be economically important?