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Which of the following reactions yields elementary gases like N2, H2, O2, as the by products

6 years ago


Answers : (1)

										the metals which are lower in reduction potential of electrochemical series liberate hydrogen gas in aqueous solution
2 Al + 6H2O+ 2OH−→ 2Al(OH)−4+ 3H2
Fe + H2O → FeO + H2

2 Fe + 3 H2O → Fe2O3+ 3 H2

3 Fe + 4 H2O → Fe3O4+ 4 H2

fromation of N2
NH4Cl(aq) + NaNO2(aq) → N2(g) + NaCl(aq) + 2 H2O (l)
2 NaN3→ 2 Na + 3 N2

02 fromation
photosynthesis reaction
from ozone
NaOCl +H2O2→O2+ NaCl +H2O
2KMnO4+ 3H2O2→ 2MnO2+ 2 KOH +2H2O+ 3O2
2 years ago

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