Question

determine whether each statement is true or false.
adhesive forces hold water molecules together as water rises in a tube.
a scoop - shaped concave meniscus forms when adhesive forces between a liquid and its container are stronger than cohesive forces between the liquid molecules.
both adhesive and cohesive forces help move water from the roots of a plant to its leaves.
adhesion is an attractive force between different types of molecules.
capillary action is only observed in plants.

Explanation:

1. Adhesive forces are between different - type molecules, while cohesive forces hold water molecules together. So the first statement is false.
2. When adhesive forces between a liquid and its container are stronger than cohesive forces between liquid molecules, a concave meniscus forms. So the second statement is true.
3. Both adhesive and cohesive forces are involved in the movement of water from plant roots to leaves through capillary action. So the third statement is true.
4. Adhesion is indeed an attractive force between different types of molecules. So the fourth statement is true.
5. Capillary action is observed in many places like in thin - walled tubes in laboratories, not just in plants. So the fifth statement is false.

Answer:

1. False
2. True
3. True
4. True
5. False