BPSC (Bihar PCS) 2020 · Question 17 of 150

A mixture of sand and naphthalene can be separated by

Miscellaneous

AsublimationCorrect
Bdistillation
Cchromatography
Dfractional distillation
ENone of the above / More than one of the above 18. The numbers of sigma and pi bonds in benzene are a. 3, 3 b. 3, 6 c. 12, 3 d. 12, 6 e. None of the above / More than one of the above

Answer: A. sublimation

Explanation

The question asks for the appropriate method to separate a mixture composed of sand and naphthalene. We need to consider the physical properties of both components to determine the best separation technique. Separating Sand and Naphthalene Mixtures Sand, primarily silicon dioxide ( SiO2 ), is a non-

Source: prepp.in

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