Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test General Science Chemistry Surface Chemistry
Which among the following is an example of Adsorption?
1
Silica gel in contact with water vapours
2
Misty windows
3
Painting
4
More than one of the above
5
None of the above