Define Procedure for Detection of Chalk in Flour
Carry out the experiment following the procedure given herewith:
1. Take a teaspoon of flour in a test tube and shake it with 10 ml distilled water.
2. Warm 20 ml dilute HCl in a beaker to 50-60°C and add to the test tube containing flour.
3. Observe for the effervescence. If gas bubbles are released, it indicates the presence of chalk in flour.