Question

What is the composition of brass?

(a) 49 percent copper and 51 percent zinc

(b) 50 percent copper and 50 percent zinc

(c) 37 percent copper and 63 percent zinc

(d) 63 percent copper and 37 percent zinc

This question was addressed to me during an interview.

My question is based upon Occurrence of Metals in section General Principles and Processes of Isolation of Elements of Chemistry – Class 12

Answer 1

The correct answer is (d) 63 percent copper and 37 percent zinc

Explanation: Brass is an alloy of copper and zinc, typically 63 percent copper and 37 percent zinc. Sometimes poor quality brass may contain a little lead. Brass is naturally corrosion resistant and has very low friction. It is used for construction of water pipes and fittings.