HARD
Upper Secondary: IGCSE
IMPORTANT
Earn 100

Lavender flowers contain a variety of different pigments(colourings). A student separated these pigments using paper chromatography. The results are shown in the diagram below.

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Draw a diagram to show how the chromatography apparatus was set up. Label the solvent.

Important Questions on Cambridge IGCSE Exam Questions from Paper 2

HARD
Upper Secondary: IGCSE
IMPORTANT

Lavender flowers contain a variety of different pigments(colourings). A student separated these pigments using paper chromatography. The results are shown in the diagram below.

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Draw a diagram to show how the chromatography apparatus was set up. Label the origin line.

MEDIUM
Upper Secondary: IGCSE
IMPORTANT
During chromatography, the solvent evaporates and then diffuses through the chromatography jar. What do you understand by diffusion?
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Ethanol can be used as a solvent in chromatography. Draw the formula for ethanol showing all atoms and bonds.
MEDIUM
Upper Secondary: IGCSE
IMPORTANT

Which two of the following statements about ethanol are true?

MEDIUM
Upper Secondary: IGCSE
IMPORTANT

The diagram shows the structures of some substances containing carbon. Answer the question using the letters A-F. Which one of these structures is ionic?

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MEDIUM
Upper Secondary: IGCSE
IMPORTANT

The diagram shows the structures of some substances containing carbon. Answer the question using the letters A-F. Which one of these structures represents ethanol?

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MEDIUM
Upper Secondary: IGCSE
IMPORTANT

The diagram shows the structures of some substances containing carbon. Answer the question using the letters A-F. Which one of these structures represents a gas which turns lime water milky?

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MEDIUM
Upper Secondary: IGCSE
IMPORTANT

The diagram shows the structures of some substances containing carbon. Answer the question using the letters A-F. Which one of these structures is an unsaturated hydrocarbon?

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