JAMB Chemistry 2019 Objective — Question 37

Question 37 of 40 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2019 Objective paper, with the correct answer and a full explanation.

Aluminium materials should not be exposed to alkalis because aluminium is a(n)

A. basic metal
B. acidic metal
C. amphoteric metalCorrect
D. reducing metal

Explanation

Aluminium is an amphoteric metal — amphoteric metals and their oxides react with both acids and alkalis. Other amphoteric metals include zinc, lead, tin and beryllium.

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