Which of the processes is used in thermite welding ? | Chemistry | SolveeIt

Question

Which of the processes is used in thermite welding ?

${TiO_{2} +4Na -> Ti + 2Na2O}$

${2Al + Fe2O3 -> Al2Oa3 + 2Fe}$

${SnO2 + 2C -> Sn + 2CO}$

${CrO3 + 2Al -> Al2O3 + 2Cr}$

Answer

${2Al + Fe2O3 -> Al2Oa3 + 2Fe}$

Explanation

Solution

A mixture of $Al$ and $Fe_{2}O_{3}$ in the ratio of $1 : 3$ is called thermite and is used in thermite welding
Thus, $2Al+Fe_{2}O_{3} \to Al_{2}O_{3}+2Fe$ is used in thermite welding

Chemistry Question on General Principles and Processes of Isolation of Elements

Solution