MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryHydrogenPreparation of Dihydrogen
Which of the following represent laboratory preparation of dihydrogen?
A.3Fe + 4H2O (steam) -> Fe3O4 + 4H2
B.2Na + 2H2O -> 2NaOH + H2
C.CaH2 + 2H2O -> Ca(OH)2 + 2H2
D.Zn + H2SO4 (dil.) -> ZnSO4 + H2✓ Correct
Explanation
Laboratory preparation of hydrogen is achieved by the addition of dilute acid on granulated zinc as in option (d).
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