Which reaction is used in thermite welding?

CoreMCQs

MCQ

Chemistry

A Zn + CuSO4 to ZnSO4 + Cu

B 2Na + Cl2 to 2NaCl

C CaO + H2O to Ca(OH)2

D 2Al + Fe2O3 to Al2O3 + 2Fe

Explanation

The thermite reaction between aluminium and iron oxide produces molten iron used in welding.