JEE Main 2026 — Hydrogen Question with Solution
JEE Main 2026 (02 April Shift 1)
Question
The mass of iron converted into by the action of g of steam is :
(Given : Molar mass of H, O and Fe are , and g mol respectively)
Assume iron is present in excess :
(Given : Molar mass of H, O and Fe are , and g mol respectively)
Assume iron is present in excess :
Choose an option
Show full solutionCorrect option: D
Correct answer
D g
Step-by-step explanation
The balanced chemical equation for the reaction of iron with steam is:
Molar mass of
Number of moles of steam () given =
From the balanced equation, of react with of .
Therefore, of will react with of .
Mass of iron reacted = Moles of Molar mass of
Mass of iron =
Answer: g
Molar mass of
Number of moles of steam () given =
From the balanced equation, of react with of .
Therefore, of will react with of .
Mass of iron reacted = Moles of Molar mass of
Mass of iron =
Answer: g
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This is a previous-year question from JEE Main 2026, covering the Hydrogen chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.