Statement I : A colloidal sol of Fe(OH)3 formed by peptisation carries positive charge.Statement II : During formation of Fe(OH)3 sol, electrons are lost by the particles.

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Statement I and II are correct

Statement I is correct and II is incorrect

Statement - I is incorrect and Statement - II is correct

Both statements - I and II are incorrect

answer is B.

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Detailed Solution

Peptization takes place forming a positively charged colloidal sol of Fe(OH)3. Peptization is a process of passing of a precipitate into colloidal particles by adding suitable electrolyte.A reddish brown colored colloidal solution is obtained by adding the small quantity of ferric chloride solution to the freshly precipitated ferric hydroxide.Fe(OH)3 have a tendency to adsorb preferentially the Fe+3 ions present in the solution as Fe+3 ions are common to the lattice of Fe(OH)3 particle which impart positive charge to the colloidal particles present in the solution.

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