Statement 1: The reaction of iron(III) oxide ${F e}_{2} O_{3}$ with aluminium is used to join railway tracks or cracked machine parts.
Statement 2: Some of the displacement reactions are highly exothermic reactions.

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Solution

${F e}_{2} O_{3} (s)$ + $2 A l (s)$ → $2 F e (l)$ + ${A l}_{2} O_{3} (s)$ + $H e a t$
In this reaction aluminium is displacing iron from iron oxide. This displacement reaction is accompanied by evolution of large amount of heat which is utilised in melting the displaced iron. This molten iron is used to join railway tracks or cracked machine parts.

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Q. Question 41(b)
Compound X and aluminium are used to join railway tracks. Name the reaction

Q. Statement 1: The reaction of iron(III) oxide (

{F e}_{2} O_{3}

) with aluminium is used to join railway tracks or cracked machine parts.
Statement 2: Some of the displacement reactions are highly exothermic reactions.

(a) Statement 1 is true, but statement 2 is false.
(b) Statement 1 is false but statement 2 is true.
(c) Statement 1 and 2 both are true but 2 is not the correct explanation of 1.
(d) Statement 1 and 2 both are true and 2 is the correct explanation of 1.

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Q. The reaction of iron oxide with is used to join railway tracks or cracked machine parts.

reaction of a compound 'X' with aluminium is used for joining railway tracks or cracked machine parts.

(a) identify the compound 'X' .

(b) name the reaction.

The reaction of a metal X with $F e_{2} O_{3}$ is highly exothermic and is used to join railway tracks. Identify metal X. Write the chemical equation of its reaction with $F e subscript 2 O subscript 3$ .

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Statement 1: The reaction of iron(III) oxide Fe2O3 with aluminium is used to join railway tracks or cracked machine parts. Statement 2: Some of the displacement reactions are highly exothermic reactions.

Statement 1: The reaction of iron(III) oxide ${F e}_{2} O_{3}$ with aluminium is used to join railway tracks or cracked machine parts.
Statement 2: Some of the displacement reactions are highly exothermic reactions.