Main alloying element in Elinvar used in precision instruments, hair springs for watches etc. is

Main alloying element in Elinvar used in precision instruments, hair s

1.	Main alloying element in Elinvar used in precision instruments, hair springs for watches etc. is
A.	chromium
B.	nickel
C.	zinc
D.	aluminium
Answer» C. zinc

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Main alloying element in Elinvar used in precision instruments, hair springs for watches etc. is

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