Bell metal is an alloy of A. Nickel and Copper B. Zinc and Copper C. Brass and Nickel D. Tin and Copper

The correct answer is: B. Zinc and Copper

Bell metal is an alloy of copper and zinc. It is a hard, durable metal that is used to make bells. The proportions of copper and zinc in bell metal can vary, but the most common alloy is 78% copper and 22% zinc.

Bell metal is a good conductor of sound, which is why it is used to make bells. The alloy is also resistant to corrosion, which makes it a good choice for outdoor use.

Here is a brief explanation of each option:

• Option A: Nickel and Copper. Nickel and copper are both metals that are used to make alloys. However, nickel and copper are not used to make bell metal.
• Option B: Zinc and Copper. Zinc and copper are the two main components of bell metal. The proportions of zinc and copper in bell metal can vary, but the most common alloy is 78% copper and 22% zinc.
• Option C: Brass and Nickel. Brass is an alloy of copper and zinc. Nickel is a metal that is not used to make brass.
• Option D: Tin and Copper. Tin and copper are both metals that are used to make alloys. However, tin and copper are not used to make bell metal.