In the lab three students were asked to prepare a colloidal solution. Student A .: Added starch powder into hot water. Student B : Added a small amount of ferric chlorideInto freshlyprepared ferric hydroxide. Student C : Added soap In to water. Identify amacromolecular colloid and an associated colloid from the three colloids prepared.

In the lab three students were asked to prepare a colloidal solution. Student A .: Added starch powder into hot water. Student B : Added a small amount of ferric chlorideInto freshlyprepared ferric hydroxide. Student C : Added soap In to water.Name the process adopted by student B.

In the lab three students were asked to prepare a colloidal solution. Student A .: Added starch powder into hot water. Student B : Added a small amount of ferric chlorideInto freshly prepared ferric hydroxide. Student C : Added soap In to water.Which type of colloid was prepared by student A, lyophoblc sol or lyophillcsol ?

Raju and Ramu were asked to prepare a colloidal solution each. Raju added starch powder into water while Ramu added saturated FeCl_3 solution ito excess boiling water. What type of colloid did Raju and Ramu prepare?

In an attempt to prepare ferric hydroxide sol by adding small amount of ferric chloride to water, one person got a precipitate of ferric hydroxide. How can you help him to convert Fe(OH)_3 precipitate to Fe(OH)_3 sol?

On adding few drops of dil, HCl to freshly precipitated ferric hydroxide, a red coloured colloidal solution is obtained. This phenomenon is known as

Ferric hydroxide sol can be prepared from freshly perpared ferric hydroxide precipitate. It can also be prepared by adding ferric chloride solution to boilling water. In both cases the sol particles are positively charged. Name the above two methods of preparation of ferric hydroxide sol.

Ferric hydroxide sol can be prepared from freshly prepared ferric hydroxide precipitate. It can also be prepared by adding ferric chloride solution to boiling water. In both cases the sol particles are positively charged. What happenswhen an electric pot ential is applied across two platinum electrodes dipping in" ferric hydroxide sol? Explain.