Answer: Water held on the paper.
- A The moving solvent
- B Water held on the paper
- C A layer of silica gel
- D The filter paper fibre itself
Correct answer: B. Water held on the paper
Explanation: In paper chromatography the stationary phase is the water trapped in the cellulose of the paper; the solvent is the mobile phase.
Geometric (cis-trans) isomers of 1,2-dichloroethene differ only in the relative arrangement of groups across the rigid C=C double bond.
Concept context
General Organic Chemistry covers the rules behind all organic reactions. Covers inductive effect, resonance, hyperconjugation, types of reactions (substitution, addition, elimination), and isomerism including optical and geometric forms.
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