Question

Cementite is:

• A. Interstitial compound of iron and carbon
• B. An alloy of $Fe$ and $Cr$
• C. A compound resembling cement
• D. An ore of iron

Answer 1

The correct option is A Interstitial compound of iron and carbon

Cementite is a compound of iron and carbon. It has an orthorhombic crystal structure. Here, carbon occupies the interstitial position in the crystal. $F{e}_{3}C$ is called as cementite.