A colloidal solution of ferric oxide is prepared by two different methods as shown below. [HOTS] i. What is the charge on colloidal particles in two test tubes (A) and (B)? ii. Give reasons for the origin of charge.

Engineering

Chemistry

Freundlich Adsorption

Question

A colloidal solution of ferric oxide is prepared by two different methods as shown below. [HOTS]
i. What is the charge on colloidal particles in two test tubes (A) and (B)?
ii. Give reasons for the origin of charge.

LiveFree JEE Main Previous Year Online Papers Live Free JEE Advance Previous Year Online Papers

College PredictorLive

Know your College Admission Chances Based on your Rank/Percentile, Category and Home State.

Get your JEE Main Personalised Report with Top Predicted Colleges in JoSA

i. Colloidal particles of test tube (A) are positively charged whereas colloidal particles of test tube (B) are negatively charged.

ii. In test tube (A),Fe³⁺is adsorbed on the precipitate Fe₂O₃.xH₂O [or Fe₂O₃.xH₂O/Fe³⁺ is formed].

In test tube (B),OH^– ion is adsorbed on the precipitate Fe₂O₃.xH₂O [or Fe₂O₃.xH₂O/OH^– is formed].

Please subscribe our Youtube channel to unlock this solution.