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Question

Select the correct balanced equation option for the reaction Fe + H2o → Fe3o4 + H2 .

This question was previously asked in
RRB NTPC 2024 Undergraduate CBT 1 Question Paper (29-Aug-2025) (Shift 1)
The correct answer is

3Fe + 4H2O→ Fe3O4 + 4H2

The correct answer is  option  2 I.e. 3Fe + 4H2O→ Fe3O4 + 4H2.

The correct balanced chemical equation for the reaction is:

3Fe + 4H₂O → Fe₃O₄ + 4H₂

Explanation:

  • Iron (Fe) reacts with water (steam) to form iron(II,III) oxide (Fe₃O₄) and hydrogen gas (H₂).

  • t me know if you want a breakdown of how it's balanced.

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Similar Questions

  1. Which type of chemical reaction involves the exchange of ions between the reactants?

  2. If we take a small amount of washing soda and add approximately 1 mL of dilute hydrochloric acid to it, what will we observe?
  3. Which of the following is NOT an example of combination reaction?
  4. Which of the following statements is/are true or false?

    Statements:
    A) H$_2$S burns in air to give H$_2$O and SO$_2$
    B) The decomposition of Ferrous Sulphate into Fe$_2$O$_3$, SO$_2$ and SO$_3$ occurs in the presence of heat.
  5. An element A forms an oxide with the formula A 3 O 4 . What is the valency of element A?
  6. Which of the following is NOT a double displacement reaction?

  7. Which of the following is NOT true for the reaction of Calcium with water?

  8. What is the compound formed when Ag+ and Cl- combine?
  9. Which of the following statemnets is INCORRECT about sodium carbonate?

  10. Which of the following is obtained upon heating ferrous sulphate?


Important Questions from Chemical Reaction

  1. Which of the following statement is/are true?

    I. In physical change new substance is formed. substance is formed.

    II. In chemical change no new substance is formed.

  2. Which of the following cells involves similar chemical reactions?

  3. The information not obtained from balanced chemical equation is

  4. Oxygen cannot be obtained by which one of the following methods?

  5. Which of the following statement is correct?

    I. Insoluble salt is obtained by precipitation reaction.

    II. Addition of oxygen or loss of hydrogen is called oxidation.

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