JAMB Chemistry 2018 Objective — Question 36

Question 36 of 36 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2018 Objective paper, with the correct answer and a full explanation.

Sodium hydroxide can be used

A. in the purification of bauxiteCorrect
B. as a deoxidant in steel casting
C. in the extraction of sulphur
D. in the oxidation of iron

Explanation

Sodium hydroxide (as a strong base) is used industrially in the purification of bauxite ore (the Bayer process) during aluminium extraction.

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