Question

question 19 (1 point) why do polar droplets show greater adhesion to the surface of the instrument? a they cling to the surface due to hydrogen bonding b they slide off the surface due to ionic bonding c they cling to the surface due to nonpolar forces d they slide faster due to hydrogen bonding

Explanation:

Polar droplets have partial charges due to their polar nature. Hydrogen - bonding is a strong intermolecular force that can occur between polar molecules and the surface if the surface has appropriate electronegative atoms or groups. This hydrogen - bonding causes them to cling to the surface, showing greater adhesion. Ionic bonding is not relevant here as polar droplets are not ions. Non - polar forces would not cause greater adhesion for polar droplets.

Answer:

a. They cling to the surface due to hydrogen bonding