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BITSAT 2020
MCQ (Single Correct Answer)
+3
-1

Out of the options listed below, which one cannot be explained by adsorption?

A
When acetic acid solution is shaken with charcoal the concentration of acid decreases.
B
The white ppt. of Mg(OH)2 attains blue colour when precipitated in the presence of magneson reagent.
C
An aqueous solution of NaOH attains pink colour with a drop of phenolphthalein.
D
When animal charcoal is shaken with coloured methylene blue solution, the solution turns colurless.
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