NICOLE'S PAPER 1 CHEMISTRY EXAM

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2 1 Which row describes the arrangement and movement of particles in a liquid? arrangement of particles movement of particles A touching and regular vibrating B touching and random moving around each other C touching and regular moving around each other D touching and random moving very fast 2 A mixture is separated using the apparatus shown. mixture funnel filter paper What is the mixture? A aqueous copper(II) sulfate and aqueous sodium chloride B aqueous copper(II) sulfate and copper C copper and sulfur D ethanol and ethanoic acid 3 Which statement about paper chromatography is correct? A A solvent is needed to dissolve the paper. B Paper chromatography separates mixtures of solvents. C The solvent should cover the baseline. D The baseline should be drawn in pencil. © UCLES 2021 0620/11/M/J/21

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