Question

state the method by which we can prepare collides of starch?

Answer 1

dissolve 2-3 gram of starch in 50ml of water. add this paste into 150ml of boiling water with constant stirring. boil the solution for a few minute and filter it once it cools to room temperature. the filtrate obtain is a colloidal solution of starch. 

Answer 2

The colloid of starch is prepared by dispersion method. 2-3 g of powdered/crushed starch is dissolved in 3- 4 ml of water to make a thin paste. This paste is added to 100 ml of boiling water while stirring. Allow the solution to cool and filter. The filtrate is colloid of starch.