Multiple choice

Which of the following is used in chemistry laboratories for sealing air-gaps in apparatus where air-tight arrangement is required?

  1. Plaster of Paris

  2. Bleaching powder

  3. Baking soda

  4. Washing soda

  5. Caustic soda

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This is the correct option. Plaster of Paris is used in chemistry laboratories for sealing air-gaps in apparatus where air-tight arrangement is required.