Question

Which of the following is an alloy of copper and zinc?

• A. (a) Brass
• B. (b) Bronze
• C. (c) Duralumin
• D. (d) Magnalium

Answer 1

The correct option is A

(a) Brass

An alloy is a homogeneous mixture of two or more metals or metal and non-metal.

Explanation of Correct option:

(a) Brass:

• Brass is an alloy of copper and zinc.
• The percentage of copper (Cu) and zinc (Zn) is ($\mathrm{Cu}$ = 60-80% $\mathrm{Zn}$ = 40-20%).

Explanation of incorrect option:

(b) Bronze: It is an alloy of copper (Cu), tin (Sn), and zinc (Zn).

(c) Duralumin: It is an alloy of aluminum (Al), magnesium(Mg), manganese(Mn), and copper(Cu).

(d) Magnalium: It is an alloy of aluminum (Al), magnesium(Mg), and small amounts of nickel (Ni) and tin (Sn).

Therefore, option (a) i.e. Brass is correct