Question

which of the following is likely to cause the precipitation of lime out of a water solution? a) photosynthesis in heat-loving algae b) rain falling out of clouds c) reduction of temperature and pressure d) water squeezed into rock joints e) sublimation of liquid water

Answer 1

C) Reduction of temperature and pressure is likely to cause the precipitation of lime out of a water solution.

To precipitate limestone add the lime to water to form calcium hydroxide to from hydrated lime or slake. Remove additional impurities from the slaked lime. Combine the solution with carbon dioxide and slaked lime.

In general ,When limestone is heated, calcium oxide and carbon dioxide gas are formed. When carbon dioxide gas is passed through freshly prepared lime water, the solution turns milky due to the formation of calcium carbonate, that is not soluble in water.

Hence, C is the correct option

To learn more about Sublimation , here

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