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प्रश्न
What do you understand by the term fuel-cell?
उत्तर
Fuel cells are devices for producing electricity from fuel in the presence of an electrolyte. Dihydrogen can be used as a fuel in these cells. It is preferred over other fuels because it is eco-friendly and releases greater energy per unit mass of fuel as compared to gasoline and other fuels.
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संबंधित प्रश्न
Describe the bulk preparation of dihydrogen by the electrolytic method. What is the role of an electrolyte in this process?
How does the atomic hydrogen or oxy-hydrogen torch function for cutting and welding purposes? Explain.
What do you understand by the term syngas?
What do you understand by the term water-gas shift reaction?
Dihydrogen can be prepared on commercial scale by different methods. In its preparation by the action of steam on hydrocarbons, a mixture of \[\ce{CO}\] and \[\ce{H2}\] gas is formed. It is known as:
(i) Water gas.
(ii) Syngas.
(iii) Producer gas.
(d) Industrial gas.
Write one chemical reaction for the preparation of \[\ce{D2O2}\].
When the same amount of zinc is treated separately with an excess dilute sulphuric acid and excess sodium hydroxide, the ratio of volumes of hydrogen evolved is ______.
In preparation of which of the following, dihydrogen is not used?
Commercial hydrogen is obtained from ______.
