NEET Chemistry Hydrogen Questions Solved

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Very pure hydrogen (99.9%) can be made by which of the following processes ?

(a) Mixing natural hydrocarbons of high molecular weight

(b) Electrolysis of water

(c) Reaction of salt like hydrides with water

(d) Reaction of methane with steam

Concept Videos :-

#1 | Hydrogen

Concept Questions :-

Preparation & Properties

(c) Hydrogen of high purity is obtained by electrolysing aqueous barium hydroxide in presence of Ni electrodes.

             2e + 2H3O+          2H2O + 12H2            2OH-           H2O + 12O2 + 2eAlso pure metal hydrides give pure H2 NaH + H2O            NaOH + H2

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