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प्रश्न
Explain briefly how hydrogen is manufactured on a large scale, from steam.
उत्तर
Manufacture of H2 from steam:
From natural gas: Natural gas is obtained from petroleum wells and consists mainly CH4 (methane). It is mixed with steam at 30 atm. and passed over heated nickel 800°C, when water gas is formed.
\[\ce{CH4 + H2O (steam)->[Ni][800°C]\underset{\text{(water gas)}}{[CO + 3H2]}}\]
Separation of CO: The gaseous mixture of [CO and H2] is passed through ammonical cuprous chloride solution in order to dissolve uncombined CO.
\[\ce{CuCl + CO + 2H2O -> CuCl.CO.2H2O}\]
Thus hydrogen gas is left over.
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संबंधित प्रश्न
Name a process by which hydrogen gas is manufactured.
Hydrogen is manufactured by the 'Bosch Process'.
How can you obtain hydrogen from a mixture of hydrogen and carbon monoxide?
In the industrial method of preparation of hydrogen by the Bosch process give the balanced equations for the first two main steps in the production of hydrogen.
In the industrial method of preparation of hydrogen by the Bosch process give the reason for use of addition of a promoter to the catalyst in the final step.
Give reason for the following:
In Bosch process – the final gaseous products are passed through caustic potash [KOH] soln.
Select the correct options for the following statement:
The metallic compound used as a catalyst in Bosch process.
Select the correct options for the following statement:
In Bosch process the catalytic reduction of steam to hydrogen is carried out by ___.
State the products of the reaction “when steam is passed over red-hot iron”.
How can you obtain hydrogen from a mixture of hydrogen and carbon monoxide?
How are the unreacted gases separated out in ‘Bosch process’ in the manufacture of hydrogen.
