Multiple choice

Match the properties of water that are responsible for the given functions or uses of water.

 
FUNCTIONS PROPERTIES
A. Insulator in capacitors I. Diffusion and osmosis
B. Water of crystallisation II. High heat capacity
C. Breathing through gills III. High dielectric constant
D. Fire extinguisher IV. Instant hydrogen bonding
E. Coolant in nuclear reactors V. High rate of evaporation

  1. A - III, B - IV, C - I, D - II, E - V

  2. A - II, B - IV, C - V, D - III, E - I

  3. A - III, B - IV, C - I, D - V, E - II

  4. A - V, B - III, C - I, D - II, E - IV
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Water acts as an insulator of charge in capacitors due to its high dielectric constant of 80. Crystallisation requires water to hydrogen bond, in order to stabilise the crystal. Breathing in all the organisms is a property of diffusion and osmosis (in gills). Nuclear reactors use variants of water (like heavy water, boiling water) as a coolant due to its high heat capacity, i.e. water carries the heat efficiently. Fire is extinguished by water as it readily evaporates and vapours cool down the nearby objects and cut down the supply of oxygen.

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