Question

Which alloy of aluminium is used for making aircrafts

• A. Alnico
• B. Y-Alloy
• C. Duralumin
• D. Aluminium Bronze

Answer 1

The correct option is C

Duralumin

Alloy is a mixture of two metals or metal and non-metal or metal and metalloid.

For making the aircraft, an alloy of Aluminium ($\mathrm{Al}$) is used which is light, tough, and resistant to corrosion. (the same thing is written in the solution itself) why to rewrite same thing again and again

Explanation for the correct option:

(C) Duralumin: Duralumin is an alloy of Aluminium ($\mathrm{Al}$) that is used to make the body parts of aircraft because it is light, tough, and resistant to corrosion.

Explanation for the incorrect option:

(A) Alnico: Alnico is an alloy of Aluminium ($\mathrm{Al}$), Nickel ($\mathrm{Ni}$), and Cobalt ($Co$). It is used to make permanent magnets.

(B) Y-Alloy: Y-Alloy is an alloy of Nickel ($\mathrm{Ni}$) that also contains Aluminium ($\mathrm{Al}$). It was prepared in World War-I to retain its strength in high temperatures.

(D) Aluminium Bronze: Aluminium Bronze is an alloy of Aluminium ($\mathrm{Al}$) and Copper ($\mathrm{Cu}$) and it is used to make engineering materials.

Therefore, the correct option is (C).