Post-UTME Chemistry 2016 Objective — Question 16
Question 16 of 20 from the Post-UTME Screening (Post-UTME) Chemistry 2016 Objective paper, with the correct answer and a full explanation.
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The use of calcium in the electrolytic extraction of calcium from calcium chloride is to
- A. speed up the process of electrolysis
- B. lower the melting point of calcium
- C. maximize the flow of electric current through the electrolyte
- D. obtain pure calciumCorrect
Explanation
In this extraction process, the use of an appropriate electrode/collection method helps obtain pure calcium metal as the final product.
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