An alloy which does not contain copper is
bronze
magnalium
brass
bell metal
Bronze: $Cu + Sn + Al$
Magnalium: $Al + Mg + Ni$
Brass: $Cu + Zn$
Bell metal: $Cu + Sn$
In the alumino-thermite process, $Al$ acts as
Assertion : Coke and flux are used in smelting.
Reason : The phenomenon in which ore is mixed with suitable flux and coke is heated to fusion is known as smelting.
Calamine and Malachite, respectively, are the ores of :
Given below are two statements.
Statement $I$ : Pig iron is obtained by heating cast iron with scrap iron.
Statement $II$: Pig iron has a relatively lower carbon content than that of cast iron. In the light of the above statements, choose the correct answer from the options given below.
Modern method of steel manufacturing is
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