Hydrogen
Give balanced equations for the following conversions:
2. Acidified water to hydrogen - by electrolysis.
1. Zinc to sodium zincate - using an alkali.
3. Water gas to hydrogen - industrially.
4. Iron [III] oxide to iron – using hydrogen.
5. Nitrogen to a basic gas - using hydrogen.
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Answer:
[CO+H_2]+H_2O→CO_2+2H_2+\triangle[CO+H
2
]+H
2
O→CO
2
+2H
2
+△
CO_2CO
2
is removed from the mixture, when this mixture is passed through KOH (caustic potash), residual gas left is hydrogen .
Fe_2O_3+3H_2→2Fe+3H_2OFe
2
O
3
+3H
2
→2Fe+3H
2
O
Fe_2O_3Fe
2
O
3
is reduced by adding hydrogen.
N_2+3H_{2\ }⇌\ 2NH_3N
2
+3H
2
⇌ 2NH
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