Which of the following phenomenon occurs when a chalk stick is dipped in ink?
(i) Adsorption of coloured substance
(ii) Adsorption of solvent
(iii) Absorption and adsorption both of solvent
(iv) Absorption of solvent
Which of the following phenomenon occurs when a chalk stick is dipped in ink?
(i) Adsorption of coloured substance
(ii) Adsorption of solvent
(iii) Absorption and adsorption both of solvent
(iv) Absorption of solvent
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1 Answer
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This is a Multiple Choice Type Questions as classified in NCERT Exemplar
Ans: (i) and (iv)
When a chalk stick is dipped in ink, the surface retains the colour of the ink due to adsorption of coloured molecules
while the solvent of the ink goes deeper into the stick due to absorption so the answers are (i) and (iv).
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