Question

Which of the following reactions represents thermite process?

• A.
• B.
• C.
• D.

Answer 1

The correct option is D

The reaction of iron (III) oxide $\left(F{e}_2{O}_3\right)$ with aluminium is used to join railway tracks or cracked machine parts. This reaction is known as thermite reaction. The following reaction represents the thermite process.

$F{e}_2{O}_3\left(s\right)+2Al\left(s\right)\to 2Fe\left(l\right)+A{l}_2{O}_3\left(s\right)+Heat$

Hence, the correct answer is option (d).