Multiple choice What is chemiclave? Chemical vapour sterilization Submerging the instruments for 4 hours in chemicals Boiling for 2 hours in water and then submerging for 2 hours in chemicals None of the above Reveal answer Fill a bubble to check yourself A Correct answer Explanation Chemiclave is a machine which sterilizes instruments with high pressure, high temperature water and some chemicals like alcohol and formaldehyde vapour. It is therefore a sterilization unit that uses chemicals under pressure.