chose the correct option.
Nipermag is an alloy of :
(1) iron, nickel, aluminium, cobalt
(2) iron; titanium, nickel, cobalt
(3) iron, nickel, aluminium, titanium
(4) iron, nickel, cobalt, titanium
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Nipermag is an alloy of :
3) iron, nickel, aluminium and titanium.
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