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Question

When iron is alloyed with a non-metal, a hard substance called steel is formed. Identify the non-metal that is used here.

A
Carbon
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B
Iron
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C
Oxygen
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D
Nickel
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Solution

The correct option is A Carbon
Alloying is a process in which one metal is combined with another element to form a material with specific properties known as alloy.

In this case, iron when mixed with a small amount of carbon (about 0.1%), becomes hard and strong to form a new substance called steel.

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