JEE Main 20206 SeptemberMorning Shift
- Exam
- JEE Main
- Year
- 2020
- Date
- 6 September
- Shift
- Morning Shift
- Subject
- Chemistry
- Chapter
- d and f Block Elements
JEE Main 2020 · 6 September · Morning Shift · Chemistry · d and f Block Elements
The INCORRECT statement is :
The INCORRECT statement is :
Options
- Abronze is an alloy of copper and tin.
- Bcast iron is used to manufacture wrought iron.
- Cgerman silver is an alloy of zinc, copper and nickel.
- Dbrass is an alloy of copper and nickel.
Correct answer
D. brass is an alloy of copper and nickel.
Step-by-step solution
\begin{cases}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 % )\end{cases}
Cast iron is used to manufacture wrought iron.