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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 + 4H2OFe3O4 + 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. Which of the following statemnets is INCORRECT about sodium carbonate?

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

  4. What compound is formed when dilute hydrochloric acid is added to a beaker containing a small amount of copper oxide?

  5. When an iron nail is dipped into a copper sulphate solution, which substance gets displaced?

  6. How many water molecules are required to react with three molecules of the iron atom to form Fe3O4?

  7. If we take a small amount of washing soda and add approximately 1 mL of dilute hydrochloric acid to it, what will we observe?
  8. Which of the following is NOT an example of combination reaction?
  9. Consider the following chemical reactions:
    I: BaCl\(_2\) (aq) + Na\(_2\)SO\(_4\) (aq) → BaSO\(_4\) (s) + 2NaCl (aq)
    II: Pb(NO\(_3\))\(_2\) (aq) + KI (aq) → PbI\(_2\) (s) + 2KNO\(_3\)(aq)
    Which of the following correctly classifies these reactions?
  10. Select the correct balanced equation for the reaction Al2(SO4)3 + BaCl2 → AlCl3 + BaSO4 .


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 is the most reactive metal?

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