Apparatus: Test tube, glass rod, beaker, Bunsen burner, etc.
Chemicals: Hydrochloric acid, ammonia solution, magnesium strip, quick lime, etc.
Activity 1: Take a small amount of hydrochloric acid in a test tube. Heat the test tube. Dip a glass rod in the ammonia solution and hold on the top of the test tube. You will observe a white smoke emanating from the tip of the glass rod. What must have happened?

Options

A. Brown fume emanating from the tip of the glass rod.
B. White smoke emanating from the tip of the glass rod
C. A pale green solid is formed on the tip of the glass rod
D. A brunt out black solid is formed on the tip of the glass rod