Select the incorrect statement: (1) In absorption, the substance is uniformly distributed throug...

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Select the incorrect statement:
(1) In absorption, the substance is uniformly distributed throughout the bulk of the solid.
(2) When a chalk stick is dipped in ink, the surface retains the colour of the ink due to absorption of coloured molecules.
(3) Water vapours are absorbed by anhydrous calcium chloride.
(4) Water vapours are adsorbed by silica gel.
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