Which one of the following alloys contains a non-metal as one of its c

Which one of the following alloys contains a non-metal as one of its constituent ?

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Brass

Bronze

Amalgam

Steel

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This question was previously asked in

UPSC NDA-2 – 2023

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Steel is an alloy that contains a non-metal, Carbon, as one of its primary constituents.

An alloy is a mixture of metals or a mixture of a metal and another element. Brass is an alloy of copper and zinc (both metals). Bronze is typically an alloy of copper and tin (both metals). An amalgam is an alloy of mercury with another metal (both mercury and the other element are metals). Steel is primarily an alloy of iron and carbon, where carbon is a non-metal. The carbon content in steel ranges from about 0.2% to 2.1% by weight.

The presence of carbon significantly alters the properties of iron, increasing its strength and fracture resistance compared to pure iron. The amount of carbon affects the steel’s properties; for instance, higher carbon content generally leads to harder and stronger steel but also makes it more brittle.

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