Question detail
Which answer avoids confusing chemical analysis 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
Identification of ions by chemical and spectroscopic means
Question
- A. It helps in determining the melting point of the compound
- B. It provides a comprehensive analysis of the ionic species present
- C. It allows for the measurement of the compound's density
- D. It simplifies the testing process
Answer
The correct answer is It provides a comprehensive analysis of the ionic species present. It matches chemical analysis because the evidence is test observation and the expected result is supported conclusion.
Explanation
The correct option is It provides a comprehensive analysis of the ionic species present. Use this as an exam check: if the observation is not supported conclusion, the conclusion about chemical analysis 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 Positive and Negative Tests
Students often think that only positive ion tests are needed to identify an ionic compound, neglecting the need for negative ion tests.
Remember that both positive and negative ion tests are essential to fully identify the ionic compound present.
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