Question

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

Answer 1

Yes, because the burning of hydrogen releases water and burning of CNG produces carbon dioxide. This gas causes greenhouse effect on the earth.

Answer 2

: Required Answer

$\longrightarrow$ Hydrogen gas is cleaner than CNG as CNG contains hydrocarbons. Carbon is a form of pollutant in CNG. On the other hand, hydrogen is waste-free and the fusion of hydrogen does not produce any waste. Hence, hydrogen as a rocket fuel is cleaner than the CNG.