Q1. Brass is an alloy of:
A Copper and Zinc Correct
B Copper and Tin
C Tin and Lead
D Iron and Nickel
Explanation
Brass is the common alloy made mainly from copper and zinc. The proportion may vary, but these two metals define brass. Copper with tin forms bronze, so that pair does not answer this question. Tin and lead are used in some soft alloys and solders, but they do not make brass. Iron and nickel form different iron-based or nickel-bearing alloys, not brass. The key idea is to remember brass as copper plus zinc, while bronze is copper plus tin.