MetallurgyMedium
Question
Which of the the following reaction produces hydrogen?
Options
A.Mg + H2O
B.H2S2O8 + H2O
C.BaO2 + HCl
D.Na2O2 + 2HCl
Solution
Mg reacts with hot water to produce H2 because it is more electronpositive than hydrogen.
Mg + H2O → MgO + H2
All Other reactions are used for manufacture of H2O2.
H2S2O8 + 2H2O → 2H2SO4 + H2O2
BaO2 + 2HCl → BaCl2 + H2O2
Na2O2 + 2HCl → NaCl + H2O2
Mg + H2O → MgO + H2
All Other reactions are used for manufacture of H2O2.
H2S2O8 + 2H2O → 2H2SO4 + H2O2
BaO2 + 2HCl → BaCl2 + H2O2
Na2O2 + 2HCl → NaCl + H2O2
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