alleryAdsorption happens because surface particles carry forces that are:
AWholly absent
BEvenly shared
CUnbalanced
DFully paired
Answer & Solution
Correct answer: C. Unbalanced
1. A particle inside the solid is pulled equally from all sides.
2. One at the surface has no neighbours above it.
3. So it carries unbalanced, or residual, attractive forces.
_Source: syllabus Chemistry Part I, Chapter 5, Surface Chemistry._
Keep practising Surface Chemistry
Browse all Surface Chemistry questions for CBSE Class 12 (Science), or explore more Chemistry topics.
Related questions
In a Lindlar catalyst, palladium is partly poisoned with what?What are promoters in catalysis?Which term is used for substances that irreversibly lower catalyst activity?Biological catalysts called enzymes are mostly made of which molecules?Why does reducing catalyst particle size raise its activity per gram?Which metal is the basis of the catalyst in the Haber ammonia process?In homogeneous catalysis, the catalyst is in which phase relative to reactants?What effect does a catalyst have on chemical equilibrium?