Question

The process of changing water into ice is called?
(A) Evaporation
(B) Condensation
(C) Precipitation
(D) Sublimation

Answer 1

Hint :To solve this question first we need to keep in mind the nature of the state of a particular substance i.e. if they are present in solid, liquid or gaseous phase. So, let’s recall each method in brief to know the conversion methods.

Complete Step By Step Answer:
So, on discussing each option -
Evaporation is the process of converting liquid phase into the gaseous or vapour state.
Condensation is the conversion of the water from its gaseous phase back to the liquid or solid phase.
Precipitation is the process of formation of dissolved chemical substances into the insoluble mass of substance at the bottom of the reaction.
While sublimation is the process of the conversion of the solid state directly into the gaseous phase without even passing through the liquid state.
So, from the above discussion, we can say that condensation is the process by which gaseous water changes into the liquid state and then from solidification it changes to ice form.
So, the correct option is B i.e. condensation.

Note :
Look at the options carefully. As we know that condensation is the process of conversion of gaseous water into the liquid state and then it solidifies to form ice i.e. a solid state. And since solidification is not given in options, we will for now go with option B i.e. condensation. But make sure solidification is given as an option, then choose it as the correct option.