Interpreting Chromatogram Results
Part of Chromatography · GCSE GCSE Chemistry revision
This comparison covers Interpreting Chromatogram Results within Chromatography for GCSE Chemistry. Revise Chromatography in Chemical Analysis for GCSE Chemistry with 23 exam-style questions and 15 flashcards. This topic shows up very often in GCSE exams, so students should be able to explain it clearly, not just recognise the term. It is section 7 of 13 in this topic. Use this comparison to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 7 of 13
Practice
23 questions
Recall
15 flashcards
⚖️ Interpreting Chromatogram Results
| Observation | Conclusion |
|---|---|
| One spot (moved up) | Sample is probably a single pure substance |
| Multiple spots | Sample is definitely a mixture of different substances |
| Spot stays at start line | Substance is insoluble in this solvent — try a different one |
| Spot at same position as known standard | Likely to be the same substance (same Rf value) |
| Streaky, elongated spots | Sample spot was too large; technique needs improvement |
Keep building this topic
Read this section alongside the surrounding pages in Chromatography. That gives you the full topic sequence instead of a single isolated revision point.
Practice Questions for Chromatography
What is the purpose of chromatography?
Explain how a chromatogram can be used to determine whether a substance is pure or a mixture.
Quick Recall Flashcards
23 questions on Chromatography — practise free
Instant marking, adaptive difficulty, and 15 spaced repetition flashcards. Free until your GCSEs.
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