Which of the following statements are true for the reaction of Fe2O3 with aluminium? 1. It is known as the 'thermite reaction'. 2. The heat evolved is used for welding purpose. 3. Aluminium metal acts as an oxidizing agent. 4. Molten Fe and Al are formed

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Q: 58 (CDS-I/2023)
Which of the following statements are true for the reaction of Fe2O3 with aluminium?
1. It is known as the 'thermite reaction'.
2. The heat evolved is used for welding purpose.
3. Aluminium metal acts as an oxidizing agent.
4. Molten Fe and Al are formed at the end of the reaction.
Select the correct answer using the code given below.

question_subject: 

Science & Technology

question_exam: 

CDS-I

The thermite reaction is exothermic and is used in welding due to the high heat release. Aluminium acts as a reducing agent, not oxidizing, and molten Fe and Al2O3, not aluminium, are produced.