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Hydrogen has been used as a rocket fuel....

Hydrogen has been used as a rocket fuel. Would you consider it a cleaner fuel `CNG` ? Why or why not ?

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Verified by Experts

Hydrogen gas is cleaner than CNG. CNG contains hydrocarbons. Therefore, it has carbon contents.
Carbon is a form of pollutant present in CNG. On the other hand, hydrogen in waste-free. The fusion of hydrogen does not produce any waste. Hance, hydrogen is cleaner than CNG.
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