Aditya took a steel spoonful of salt water and heated the spoon over the spirit lamp. Which of the given statements are correct about his observations and the process?
A
Water gets evaporated
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B
Salt is left behind
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C
The process is evaporation
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D
This process is condensation
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Solution
The correct options are A Water gets evaporated B Salt is left behind C The process is evaporation The phenomenon which involves the change of state from liquid to gas is known as evaporation. On heating the spoon full of saltwater over the spirit lamp, water will evaporate leaving salt behind in the spoon. The same phenomenon is used to obtain salt from the sea water.