Tamilnadu BoardEnglish MediumSTD 12ChemistrySurface Chemistry3 Marks
Question
Write any 3 applications of adsorption.
✓
Answer
Gas masks: During World War I. charcoal gas mask was employed.
To create high vaccum in vessels, activated charcoal is used. For dehydration and purification of gases like $CO _2, N_2, O _2$ and He , alumina and silica gel are employed.
In blast furnace, silica gel is used for drying air.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.