Chromatography
12.3What the syllabus asks of you
- Describe how paper chromatography is used 3 Describe how paper chromatography is used to separate mixtures of soluble coloured to separate mixtures of soluble colourless substances, using a suitable solvent substances, using a suitable solvent and a locating agent Knowledge of specific locating agents is not required
- Interpret simple chromatograms to identify: 4 State and use the equation for Rf: (a) unknown substances by comparison with Rf = distance travelled by substance / distance travelled by solvent known substances (b) pure and impure substances
Read the notes first
Chapter 12: Chromatography
Drill this topic
Every question on Chromatography, untimed, marked as you go.
Make a worksheet
Choose the years and how many questions, then print it with the answers on separate pages.
20 questions
1May / June 2026 · Paper 21 · Q40Show mark scheme →
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2May / June 2026 · Paper 22 · Q38Show mark scheme →
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3Oct / Nov 2025 · Paper 22 · Q40Show mark scheme →
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4May / June 2025 · Paper 21 · Q40Show mark scheme →
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5May / June 2024 · Paper 21 · Q40Show mark scheme →
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6Oct / Nov 2023 · Paper 21 · Q38Show mark scheme →
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7Oct / Nov 2023 · Paper 22 · Q40Show mark scheme →
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8May / June 2023 · Paper 21 · Q40Show mark scheme →
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9May / June 2023 · Paper 22 · Q39Show mark scheme →
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10Oct / Nov 2022 · Paper 21 · Q2Show mark scheme →
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11Oct / Nov 2022 · Paper 22 · Q3Show mark scheme →
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12May / June 2022 · Paper 22 · Q3Show mark scheme →
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13May / June 2021 · Paper 21 · Q3Show mark scheme →
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14May / June 2021 · Paper 22 · Q3Show mark scheme →
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15Oct / Nov 2020 · Paper 21 · Q2Show mark scheme →
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16Oct / Nov 2020 · Paper 21 · Q4Show mark scheme →
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17Oct / Nov 2020 · Paper 22 · Q2Show mark scheme →
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18Oct / Nov 2020 · Paper 22 · Q4Show mark scheme →
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19May / June 2020 · Paper 21 · Q3Show mark scheme →
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20May / June 2020 · Paper 22 · Q3Show mark scheme →
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