The INCORRECT statement is :


The INCORRECT statement is :

  1.  bronze is an alloy of copper and tin.

  2. cast iron is used to manufacture wrought iron.

  3. german silver is an alloy of zinc, copper and nickel.

  4. brass is an alloy of copper and nickel.

Correct Option: , 4


(a) Bronze contains $88-96 \% \mathrm{Cu}$ and 4-12\% Sn.

(b) Cast iron is used to make wraught iron.

(c) German silver contains $50 \% \mathrm{Cu}, 30 \% \mathrm{Zn} \& 20 \% \mathrm{Ni}$.

(d) Brass contains $70 \% \mathrm{Cu}$ and $30 \% \mathrm{Zn}$.

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