WATER PURIFICATION EXAM QUESTIONS WITH VERIFIED SOLUTIONS LATEST VERSION 2024-2025
(ALREADY PASSED)
calcium and magnesium carbonates, bicarbonates and sulfates - Answers Hard water is largely made up
of ________
Surface Tension - Answers the property of the surface of a liquid that allows it to resist an external force,
due to the cohesive nature of the water molecules.
Adhesion - Answers the attraction between the molecules of two different substances
Cohesion - Answers is the attraction between the molecules or atoms of the same substance
Surfactants - Answers They reduce the surface tension value of water and enhance its ability to stick to
things
reduces its surface tension - Answers Adding detergent to water _________
surfactants - Answers Detergents and soaps have something called _________
surface-active agents - Answers aka. surfactants
Viscosity - Answers is a liquid's resistance to flowing or a means of measurement of the movement of
particles over one another.
decreases - Answers What happens to viscosity when temperature increases?
Distillation - Answers the process of separating the components or substances in a liquid mixture by
selective evaporation and condensation.
receiver, condenser, thermometer, distilling flash, heat source - Answers parts of a distillation set up
receiver - Answers collects the liquid distillate
condenser - Answers facilitates the conversion of gaseous distillate to liquid distillate
thermometer - Answers measures the boiling point of the distillate
distilling flask - Answers contains the liquid mixture to be distilled
concentration of multivalent cations in water - Answers Hardness of water is determined by the?
Multivalent cations - Answers positively charged metal complexes with a charge greater than 1+.
Water Hardness - Answers can be defined as the soap-consuming capacity of a water sample
Water Hardness - Answers characteristic property of water that prevents the lathering of soap
(ALREADY PASSED)
calcium and magnesium carbonates, bicarbonates and sulfates - Answers Hard water is largely made up
of ________
Surface Tension - Answers the property of the surface of a liquid that allows it to resist an external force,
due to the cohesive nature of the water molecules.
Adhesion - Answers the attraction between the molecules of two different substances
Cohesion - Answers is the attraction between the molecules or atoms of the same substance
Surfactants - Answers They reduce the surface tension value of water and enhance its ability to stick to
things
reduces its surface tension - Answers Adding detergent to water _________
surfactants - Answers Detergents and soaps have something called _________
surface-active agents - Answers aka. surfactants
Viscosity - Answers is a liquid's resistance to flowing or a means of measurement of the movement of
particles over one another.
decreases - Answers What happens to viscosity when temperature increases?
Distillation - Answers the process of separating the components or substances in a liquid mixture by
selective evaporation and condensation.
receiver, condenser, thermometer, distilling flash, heat source - Answers parts of a distillation set up
receiver - Answers collects the liquid distillate
condenser - Answers facilitates the conversion of gaseous distillate to liquid distillate
thermometer - Answers measures the boiling point of the distillate
distilling flask - Answers contains the liquid mixture to be distilled
concentration of multivalent cations in water - Answers Hardness of water is determined by the?
Multivalent cations - Answers positively charged metal complexes with a charge greater than 1+.
Water Hardness - Answers can be defined as the soap-consuming capacity of a water sample
Water Hardness - Answers characteristic property of water that prevents the lathering of soap
