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Here is my question ⤵⤵⤵
Q. We know Hydrogen has highest calorific value. So can we obtain hydrogen from water (H2O). Give proper reason for your answer.
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Answers
Collect the hydrogen in a submerged test tube.
When the test tube fills with hydrogen, submerge another tube with water and place it over the tubing. You can collect as much hydrogen as is produced by your reaction.
Keep the test tubes facing down to prevent the hydrogen gas from escaping into the air.
or simply do Electrolysis.
Click the attachment to view the diagram.
Electrolysis is the technical name for using electricity to split water into its constituent elements, hydrogen and oxygen. The splitting of wateris accomplished by passing an electric current through water.
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Answer:
When hydrogen comes in contact with air, it reacts explosively. Hydrogen needs to be compressed at higher pressures. This process is quite hectic which causes a storage problem. As hydrogen is combustible and has a storage problem, transportation is also a problem for hydrogen gas. Therefore, though hydrogen gas has the highest calorific value, it cannot be used as a fuel.
Hope this will help you :)