Which of the following separation method is not used for the separation of solid - solid mixture
Fractional distillation
Correct option (B).
Explanation of correct option.
Fractional distillation is a method to separate two miscible liquids like alcohol and water, acetone and water. in which liquids are heated on their boiling point one by one to separate them. Whereas magnetic separation, sieving and handpicking are the methods to separate the mixture of solid and solid.
Explanation of Incorrect option.
Magnetic separation is used, when one of the solid has magnetic properties. for example iron nails and sand
Sieving is a method for the separation of solid and solid on the basis of their particle size. For example to separate impurities from flour.
Handpicking is a manual method applied to separate some larger particles from the mixture.For example stone fragments from wheat and rice.
Hence fractional distillation is a method used to separate the mixture of solid and liquid, therefore option (B) is correct.