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JEE Main20206 Sep 2020Morning ShiftChemistryd and f Block ElementsActual

The INCORRECT statement is :

Options

  1. Abronze is an alloy of copper and tin.
  2. Bcast iron is used to manufacture wrought iron.
  3. Cgerman silver is an alloy of zinc, copper and nickel.
  4. Dbrass is an alloy of copper and nickel.

Correct answer

D. brass is an alloy of copper and nickel.

Step-by-step solution

  S . No .    Alloy     Composition   1 .   Bronze   Cu ( 75 - 90 % ) + Sn ( 10 , 25 % ) 2 .   Brass   Cu ( 60 - 80 % ) + Zn ( 20 - 40 % ) 3 .   GermanSilver   Cu ( 50 - 62 % ) + Zn ( 17 - 19 % ) + Ni ( 21 - 30 % ) Cast iron is used to manufacture wrought iron.

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