What is the composition of brass?
Answer & explanation
Correct answer: option 4
The correct answer is option 4. 63 percent copper and 37 percent zinc.
Brass is a copper and zinc alloy with a typical composition of 63% copper and 37% zinc. There are situations when lead may be present in brass of inferior grade. Brass has extremely little friction and is inherently resistant to corrosion. It is employed in the manufacture of water pipes and fixtures.