AP BIOLOGY

BIOCHEMISTRY

PROPERTIES OF WATER

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Water droplets sticking to the sides of a glass is an example of this property of water-
A
cohesion
B
adhesion
C
capillary action
D
surface tension
Explanation: 

Detailed explanation-1: -This is because the water molecules are attracted to the charged glass walls of the capillary more than they are to each other and therefore adhere to it. This type of adhesion is called capillary action.

Detailed explanation-2: -Water and glass have a smaller attractive force, called adhesion rather than cohesion to distinguish the intermolecular forces between two separate bodies (glass attracting water) from those of water attracting water. Adhesion between water and glass leads to capillary rise in a glass tube.

Detailed explanation-3: -Answer and Explanation: The property of water that allows it to stick to glass is called adhesion. This property is related to cohesion, which is the tendency of water molecules to be attracted to one another. Adhesion is due to the molecular structure of a water molecule and the type of bonding that occurs.

Detailed explanation-4: -A water drop is composed of water molecules that like to stick together-an example of the property of cohesion. In the picture of pine needles above, the water droplets are stuck to the end of the pine needles-an example of the property of adhesion.

Detailed explanation-5: -A meniscus is a curve in the surface of a molecular substance (water, of course) when it touches another material. With water, you can think of it as when water sticks to the inside of a glass.

There is 1 question to complete.