JAMB Chemistry 2017 Objective — Question 28

Question 28 of 40 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2017 Objective paper, with the correct answer and a full explanation.

The constituent common to duralumin and alnico is

A. A. Co
B. B. Mn
C. C. AlCorrect
D. D. Mg

Explanation

Duralumin = Al+Mn+Cu+Mg; Alnico = Al+Ni+Co+Fe. Aluminium (Al) is common to both alloys.

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