The method that is used to obtain pure salt from impure salt-

Decantation

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Evaporation

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Crystallization

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Condensation

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Solution

The correct option is C Crystallization
By the process of crystallisation. In this method, impure salt is dissolved in a particular solvent either as such or on heating while the impurity does not dissolve. A hot concentrated solution is prepared and this upon filtration and cooling gives the crystals of the pure compound NaCl.

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