MEDIUMMCQ SINGLENEET ChemistryInorganic ChemistryHydrogenPreparation of Dihydrogen
Hydrogen is not obtained when zinc reacts with
A.Cold water✓ Correct
B.Hot NaOH solution
C.dil.
D.dil. HCl
Explanation
Zinc does not react with cold water. 2 2 steam 2 2 2 2 2 2 4 4 Zn H O ZnO H Zn 2NaOH Na ZnO H Zn 2HCl dil ZnCl H Zn H SO dil ZnSO H -> -> -> ->
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