Question

Adding sodium chloride to water is a:

A

physical change

B

chemical change

C

irreversible change

D

None of these

Medium

Solution

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Correct option is
A

physical change

Physical changes are changes in the physical properties of substances. No new substances are formed in these changes.
Addition of sodium chloride to water does not result in the formation of any new substance, hence it is a physical change. Plus, we can back sodium chloride in its original state by simple evaporation of water. Therefore, it is a reversible change. 
So, the correct option is A. 

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