Question

The bell metal is an alloy of:

• A. nickel and copper
• B. brass and nickel
  
• C. tin and copper
• D. tin and aluminium

Answer 1

The correct option is C tin and copper

Bell metal is a hard alloy used for making bells and related instruments, such as cymbals. It is a form of bronze, usually in approximately a $4:1$ ratio of copper to tin (e.g., 78% copper, 22% tin by mass).

So answer is $C$.