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Question
Dow metal contains
Options:
A .  94% aluminium, 4% copper and 0.5% Mn, Mg, Si and Fe
B .  92.5% aluminium and, 4% copper, 2% nickel and 1.5% Mg
C .  90% aluminium and 90% copper
D .  90% magnesium and 9% aluminium with some copper
Answer: Option D
Dow metal contains 90% magnesium and 9% aluminium with some copper

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