Which one of the following is not explained by adsorption?

Question

Which one of the following is not explained by adsorption? (A) When acetic acid solution is shaken with charcoal, the concentration of the acid decreases (B) The white precipitate of Mg(OH)2 attains blue colour when precipitated in the presence of magneson reagent (C) The air becomes dry in the presence of silica gel (D) An aqueous solution of NaOH attains pink colour with a drop of phenolphthalein

Tardigrade Admin · Accepted Answer

Colour of the indicator changes due to change in pH and not because of adsorption

Q. Which one of the following is not explained by adsorption?

When acetic acid solution is shaken with charcoal, the concentration of the acid decreases

The white precipitate of $M g (O H)_{2}$ attains blue colour when precipitated in the presence of magneson reagent

The air becomes dry in the presence of silica gel

An aqueous solution of NaOH attains pink colour with a drop of phenolphthalein

When animal charcoal is shaken with coloured methylene blue solution, the solution turns colourless

Colour of the indicator changes due to change in pH and not because of adsorption

Q. Which one of the following is not explained by adsorption?

When acetic acid solution is shaken with charcoal, the concentration of the acid decreases

The white precipitate of Mg(OH)2​ attains blue colour when precipitated in the presence of magneson reagent

The air becomes dry in the presence of silica gel

An aqueous solution of NaOH attains pink colour with a drop of phenolphthalein

When animal charcoal is shaken with coloured methylene blue solution, the solution turns colourless

Colour of the indicator changes due to change in pH and not because of adsorption

The white precipitate of $M g (O H)_{2}$ attains blue colour when precipitated in the presence of magneson reagent