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Question

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. 

This question was previously asked in
CDS I 2023 English Previous Year Paper (16-April-2023)
The correct answer is

1 and 2

1 and 2

Therefore, the statements that are true for the reaction of \( \text{Fe}_2\text{O}_3 \) with aluminium are statements 1 and 2.

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Important Questions from General Principles And Process of Isolation of Elements

  1. Electrolysis as a source of extraction of metals are only successful when ________________.

  2. Froth floatation process is based on-

  3. Why is mercury obtained from cinnabar ore through two heating steps instead of direct reduction?
  4. Which process is used to convert zinc carbonate ore into zinc oxide before reduction?
  5. The metal refined by Van Arkel method is

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