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QJEEM12Ch258a: JEE Main 2012 Chemistry - Class 11 JEEM12Ch258a Solution: Very pure hydrogen (99.9%) can be made by which of the…
Very pure hydrogen (99.9%) can be made by which of the following processes?
Multiple Choice Options
- A Reaction of methane with steam
- B Mixing natural hydrocarbons of high molecular weight
- C Electrolysis of water
- D Reaction of salt like hydrides with water
Step-by-Step Verified Solution
Very pure hydrogen (99.9%) can be prepared by the action of water on any hydrides i.e, sodium hydride(NaH), Calcium Hydride(CaH2) etc.
By electrolysis of water we get 99.5% pure hydrogen.
2H2O
Note :
By electrolysis of water we can't get 99.9% pure hydrogen we only get around 99.5% pure hydrogen. That is why option (C) is wrong.
By electrolysis of water we get 99.5% pure hydrogen.
2H2O
Note :
By electrolysis of water we can't get 99.9% pure hydrogen we only get around 99.5% pure hydrogen. That is why option (C) is wrong.