A) \[Al+Mn\]
B) \[Al+Mg+Ni+Mn\]
C) \[Al+Mg+Ni\]
D) \[Al+Mg+Mn+Cu\]
Correct Answer: D
Solution :
Duralumin is an alloy which contains\[95%\,\,Al\],\[4%\,\,Cu\] \[0.5%\,\,Mg\] and\[0.5%\,\,Mn\].
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