Chemistry
How are the unreacted gases separated out in 'Bosch process' in the manufacture of hydrogen.
Hydrogen
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Answer
(a) CO2 is removed by dissolving mixture in water under pressure [30 atmospheres], or caustic potash solution to dissolve CO2.
2KOH + CO2 ⟶ K2CO3 + H2O
(b) CO is removed by dissolving mixture in ammoniacal cuprous chloride solution.
CuCl + CO + 2H2O ⟶ CuCl.CO.2H2O.
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