Polarity & Properties of Water | BOGO Biology Quiz

What shape does a water molecule resemble?

• Linear

• Tetrahedral

• V-shaped

• Hexagonal

What causes water molecules to have a dipole moment?

• Equal sharing of electrons

• The size of the oxygen atom

• Unequal electron sharing due to electronegativity differences

• The covalent bonds being ionic in nature

How many hydrogen bonds can one water molecule form at a time?

• 2

• 3

• 4

• 5

Why does water have a high specific heat capacity?

• Due to its low density

• Because it is a liquid at room temperature

• Due to the hydrogen bonds it forms

• Because of its molecular weight

What property of water helps in maintaining homeostasis in living organisms?

• Surface tension

• Adhesion

• Specific heat capacity

• Cohesion

What allows insects to walk on water?

• High specific heat capacity

• Adhesion to water molecules

• Surface tension due to cohesion

• Capillary action

What phenomenon causes water to form a rounded bead on waxy surfaces?

• Adhesion

• Both cohesion and adhesion

• Capillary action

• Cohesion

What is necessary for capillary action to occur?

• Adhesion being stronger than cohesion

• Cohesion being stronger than adhesion

• High specific heat capacity

• Surface tension only

How does capillary action benefit plants?

• It reduces transpiration

• It allows water to move upwards against gravity

• It helps in seed dispersal

• It decreases water absorption

What role does capillary action play in medical diagnostics?

• It decreases the accuracy of tests

• It is used to increase blood flow

• It is used to measure blood sugar levels

• It helps in cooling the equipment