JEE Advanced 2012Paper 2
- Exam
- JEE Advanced
- Year
- 2012
- Paper
- Paper 2
- Subject
- Chemistry
- Chapter
- Surface Chemistry
JEE Advanced 2012 · Paper 2 · Chemistry · Surface Chemistry
The given graphs/data I, II, III and IV represent general trends...
The given graphs/data I, II, III and IV represent general trends observed for different physisorption and chemisorption processes under mild conditions of temperature and presure. Which of the following choice(s) about I, II, III and IV is (are) correct?
Options
- AI is physisorption and II is chemisorption
- B is physisorption and is chemisorption
- CIV is chemisorption and II is chemisorption
- DIV is chemisorption and III is chemisorption
Correct answer
A. I is physisorption and II is chemisorption
Step-by-step solution
Graph (I) and (III) represent physisorption because, in physisorption, the amount of adsorption decreases with the increase of temperature and increases with the increase of pressure.
Graph (II) represent chemisorption, because in chemisorption amount of adsorption increases with the increase of temperature. Graph (IV) is showing the formation of a chemical bond, hence chemisorption.