Question

Brass contains:

• A. $\mathrm{Cu}$ and $\mathrm{Sn}$
• B. $\mathrm{Cu}$ and $\mathrm{Ni}$
• C. $\mathrm{Cu}$ and $\mathrm{Zn}$
• D. $\mathrm{Mg}$ and $\mathrm{Al}$

Answer 1

The correct option is C

$\mathrm{Cu}$ and $\mathrm{Zn}$

Alloys are made up of two or more metals, non-metals, or metalloids.

Explanation for the correct option:

(C) Copper ($\mathrm{Cu}$) and Zinc ($\mathrm{Zn}$): Brass is an alloy which contains two metals, i.e., Copper ($\mathrm{Cu}$) is $67\%$ and Zinc ($\mathrm{Zn}$) is $33\%$.

Explanation for the incorrect option:

(A) Copper ($\mathrm{Cu}$) and Tin ($\mathrm{Sn}$): Copper and Tin are the constituents of Bronze alloy.

(B) Copper ($\mathrm{Cu}$) and Nickel ($\mathrm{Ni}$): Copper and Nickel are the constituents of Cupronickel alloy

(D) Magnesium ($\mathrm{Mg}$) and Aluminium ($\mathrm{Al}$): Magnesium and Aluminium are the constituents of Magnox alloy.

Therefore, the correct option is (C).