WAEC Chemistry 2019 Objective — Question 48

Question 48 of 50 from the West African Examinations Council (WAEC) Chemistry 2019 Objective paper, with the correct answer and a full explanation.

Which of the following methods is not used for the separation of mixtures?

A. chromatography
B. crystallization
C. Distillation
D. ElectrolysisCorrect

Explanation

Chromatography, crystallization and distillation are physical separation techniques; electrolysis is a chemical decomposition process, not a separation technique for mixtures.

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