Ncert Exercises & Solutions

Describe briefly the three physical properties of water which helps in ascent of water in xylem.

The three Physical properties of water that helps in ascentup to xylem are as given

Cohesive properties

Adhesive properties

Surface tension

Mutal attraction between molecules

Attraction of water molecules to polar surfaces(of tracheids)

Water molecules getattracted to each other morein liquid phase than in gas phase.