JEE Main · 2019 · 10 Apr 2019 · Shift 1 · s-Block Elements

The alloy used in the construction of aircrafts is

(A) $Mg - Mn$
(B) $Mg - Zn$
(C) $Mg - Al$ ✓ Correct
(D) $Mg - Sn$

Answer: (C)

Solution

Magnesium-aluminium alloys are the standard choice for aircraft bodies because they combine very low density with good strength and corrosion resistance. Holding strength while keeping weight down is exactly what airframes need, which is why magnalium and related

Mg

Al

alloys are used.

JEE Main · 2019 · 10 Apr 2019 · Shift 1 · Single correct option

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