Question

std 9th science 2 experiment no 1​

Answer 1

Explanation:

Experiment 1. Preparation of :

a) a true solution of common salt, sugar and alum

b) a suspension of soil, chalk powder and fine sand in water.

c) a colloidal solution of starch in water and egg albumin/milk in water and distinction between these on the basis of

transparency

filtration criterion

stability