Question

The density of pure magnesium is ___________

(a) 4.506 gram per cubic centimeter

(b) 2.7 gram per cubic centimeter

(c) 12.35 lb./cu.in.

(d) 0.064 lb./cu.in.

This question was posed to me in semester exam.

My doubt is from Applications and Properties of Magnesium and it’s alloys in division Magnesium Alloys of Aerospace Materials & Processes

Answer 1

Right option is (d) 0.064 lb./cu.in.

Explanation: The density of a material is the ratio of the amount of mass to the volume. The density of pure magnesium is 0.064 lb./cu.in. The density of titanium is 4.506 gram per cubic centimeter and that of aluminium is 2.7 gram per cubic centimeter.