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 observation?

Salt is left behind

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Water gets evaporated

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Only a and b

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The process is evaporation

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Solution

The correct option is D
The process is evaporation

On heating the spoon full of salt water over the spirit lamp, the water will get evaporated and the salt will be left in the spoon. This phenomenon which involves the change of state of water from liquid to gas is known as evaporation. The same phenomenon is used to obtain salt from the sea water.

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