Ionic, Covalent and Interstitial Hydrides, Hydrogen as a Fuel

Properties of hydrogen :
Metals + dil acids → H2 ↑ (hydrogen gas) + metal salt
ex : Zn + 2HCl → ZnCl2 + H2
Fe + 2HCl → FeCl2 + H2

2Al + 2NaOH + 2H_{2}O \rightarrow 2NaAlO_{2} + 3H_{2}
2Al + 6NaOH + H_{2}O \rightarrow 2Na_{3}AlO_{3} + 3H_{2}
Zn + 2NaOH \rightarrow Na_{2}ZnO_{2} + H_{2}

Preparation of hydrogen (H2)

Aqueous Ba(OH)_{2} \xrightarrow[electrolysis]{Ni \ electrodes}H_{2} + O_{2}
highly purified H2 is obtained > (99.95%)

preparation of water gas :

Water gas shift reaction :

By destructive distillation (in absence of air maximum H2 is obtained)
Petrochemicals - 77%
Coal - 18%
Electrolysis - 4%
Aq sol of other sources - 1%

Hydrogen formylation reaction :
\tt Olefins + CO + H_{2} \xrightarrow[]{\Delta}Aldehydes\xrightarrow[]{H_{2}} Alcohols
\tt R-CH = CH_{2} + CO + H_{2} \xrightarrow[]{\Delta} R - CH_{2} = CHO \xrightarrow[]{H_{2}} R - CH_{2} - CH_{2} - CH_{2} - OH
Ex:- \tt CH_{2} = CH_{2} + CO + H_{2} \xrightarrow[]{\Delta} CH_{2}- CH_{2} - CHO \xrightarrow[]{H_{2}} CH_{2} - CH_{2} - CH_{2} - OH

Part1: View the Topic in this Video from 0:06 to 4:33

Part2: View the Topic in this Video from 0:06 to 7:55

Part3: View the Topic in this Video from 0:06 to 5:35

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