Exemplar - Thermit reaction — task. Chemistry CBSE Live product, Class 10.

Answer the following question:

A metal joining process in railway construction uses aluminium powder and an oxide compound (X).

i. What is compound X?
ii. What is the name of this aluminothermic reaction?
iii. Write its chemical equation.

i. The compound 'X' is

Iron oxide (\(Fe_2O_4\))
Iron oxide (\(FeO\))
Iron (II) oxide (\(Fe_2O_3\))
Iron (III) oxide (\(Fe_2O_3\))

ii. The name of the reaction is the .

iii. The equation is

\(Fe_2O_4(s)+2Al(l)→2Fe(s)+Al_2O_3(s)+Heat\)
\(Fe_2O_3(s)+2Al(s)→2Fe(l)+Al_2O_3(s)+Heat\)
\(2FeO(s)+2Al(s)→2Fe(s)+Al_2O_3(s)+Heat\)
\(Fe_2O_3(s)+2Al(l)→Fe_2(l)+Al_2O_4(s)\)

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4. Exemplar - Thermit reaction

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