Question

sand and naphthalene balls were heated together in China dish which substance left in China dish? name the method​

Answer 1

Nothing is left in the dish. The method is called sublimation.

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Answer 2

naphthalene gets evaporated easily due to the heat supplied.

so sand is left in the dish.

When mixture of sand and naphthalene is heated, naphthalene undergoes sublimation and hence is converted to gas and collected by a cotton ball.

Thus the residue left is sand on

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