Question

Alloys of ...... metal are light and strong and so are used in the manufacture of aeroplane parts.

• A. $Cr$
• B. $Sn$
• C. $Fe$
• D. $Mg$

Answer 1

Answer: (D)

$Mg$

Answer 2

Duralium$(Al = 95\%,Cu = 4\%,Mn = 0.5\%,Mg = 0.5\%)$

being light, tough and durable is used for the

manufacture of aeroplanes and automobile parts.