Question

In a Thermite reaction, a compound of iron reacts with a metal:-
(a) Name he metal used in this reaction(b) After completion of this reaction a metal is obtained in the molten state. Identify the metal.(c) Represent this reaction in the form of a balanced chemical equation(d) Mention the most common use of this reaction

Answer 1

a. Aluminium

b. Iron

c. Fe2O3 + 2Al ------- Al2O3 + 2Fe , here Fe is produced in molten state because a lot of heat is given out which melts there itself the iron produced. The most common use of this reaction is that this reaction is used in combining the railway tracks or cracked machinery parts. 

Answer 2

(a) Aluminium (Al)

(b) Iron(Fe)

(c) Fe2O3 + 2Al —> 2Fe + Al2O3 + Heat

(d) uses (1) To join railway tracks

(2) use in cracked machine parts