Question

Titanium consists of about _________ of the earth’s crust.

(a) 27.7%

(b) 0.57%

(c) 2.34%

(d) 5%

This question was addressed to me during an online exam.

The origin of the question is Titanium and its Alloys in section Titanium and its Alloys of Aerospace Materials & Processes

Answer 1

Right option is (b) 0.57%

To elaborate: Titanium consists of around 0.57% of the earth’s crust. It is the ninth most abundantly found material. Silicone is found in higher quantities compared to titanium in the earth’s crust which is around 27.7%.