Question

Identify the alloy containing a non-metal as a constituent in it.

Options

• invar

• steel

• bell metal

• bronze

Answer 1

steel

Explanation:

Steel is an alloy of iron and carbon. Here, carbon is a non-metal, which makes steel the correct answer. Other alloys, like invar (iron + nickel), bell metal (copper + tin), and bronze (copper + tin), contain only metals.