Question detail
Which answer avoids confusing formulation with another qualitative analysis result?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Purity, formulations and chromatography
Question
- A. Formulations are always solid, while unplanned mixtures are liquid
- B. Formulations have specific proportions of components, while unplanned mixtures do not
- C. Formulations are pure substances, while unplanned mixtures are not
- D. Formulations can only be made in a laboratory
Answer
The correct answer is Formulations have specific proportions of components, while unplanned mixtures do not. It matches formulation because the evidence is designed mixture composition and the expected result is useful product properties.
Explanation
The correct option is Formulations have specific proportions of components, while unplanned mixtures do not. Use this as an exam check: if the observation is not useful product properties, the conclusion about formulation is not properly supported. Other options are weaker when they confuse gas tests, flame colours, ion-test precipitates, chromatography evidence, or pure-substance/formulation wording.
Common mistake
Confusing Formulations with Pure Substances
Students often think that all mixtures are formulations, not recognizing that formulations are specifically designed mixtures with a purpose.
Remember that a formulation is a mixture created for a specific use, while a pure substance is a single element or compound without any other substances mixed in.
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