Which of the following is correct?

  • A
    Gun metal : $Cu + Zn + Sn$
  • B
    Duralumin : $Al + Cu + Mg + Mn$
  • C
    German silver : $Cu + Zn + Ni$
  • D
    Solder : $Pb + Sn$

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Similar Questions

Among statements $(a)-(d),$ the correct ones are
$(a)$ Limestone is decomposed to $CaO$ during the extraction of iron from its oxides.
$(b)$ In the extraction of silver,silver is extracted as an anionic complex.
$(c)$ Nickel is purified by Mond's process.
$(d)$ $Zr$ and $Ti$ are purified by Van Arkel method.

Match the items of List-$I$ with those of List-$II$ and choose the correct option given below.
List-$I$List-$II$
$A$. Calcination$1$. Galena
$B$. Roasting$2$. Magnetite
$C$. Magnetic separation$3$. Pyrometallurgy
$D$. Carbon reduction of metal oxide$4$. Malachite

Which of the following changes involve more than two metallurgical processes?

Which one of the following reactions does not occur during the extraction of copper?

The statement that is $INCORRECT$ about Ellingham diagram is :

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