NEETChemistrySurface Chemistry
How are solid materials with clean surfaces affected if not stored in a vacuum?
Options
- AThey become magnetic
- BThey become electrically charged
- CThey become covered by air molecules
- DThey become highly reactive
Correct answer
C. They become covered by air molecules
Step-by-step solution
The paragraph mentions that if solid materials with clean surfaces are not stored in a vacuum, they will be covered by molecules of dioxygen and dinitrogen.