First slide

Uses of Boron & Aluminium

Question

The composition of duralumin is

Easy

A

Al 94%, Mg 6%
B

Cu 56%, Zn 24%, Ni 20%
C

Cu 95%, Al 5%
D

Al 95%, Cu 4%, Mn 0.5%, Mg 0.5%

Solution

Element Percentage

Al 95%

Cu 04%

Mn 0.5%

Mg 0.5%

Duralumin is widely used in aircraft construction.

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