what is the use of hydrogen gas
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Hydrogen gas is sometimes used directly to create an acid. For example, it is used in the creation of hydrochloric acid: H2 + Cl2 → 2HCl. Hydrogen gas is used in the processing of petroleum products to break down crude oil into fuel oil, gasoline and such.
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1.Used to make ammonia
2.Can harden oil
3.To extract metals by reducing agent
4.To produce oxy-hydrogen flame- used for welding metals
5.Liquid hydrogen can be used for rocket by fuel
6.Can be used to fill balloons
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