Although dihydrogen can be prepared by electrolysis of water but in fertilizer industry, dihydrogen needed for making urea is prepared froom natural gas or naphtha. Why so ?

Although dihydrogen can be prepared by electrolysis of water but in fe

1.	Although dihydrogen can be prepared by electrolysis of water but in fertilizer industry, dihydrogen needed for making urea is prepared froom natural gas or naphtha. Why so ?
Answer» Solution :MANUFACTURING of `H_(2)` by electrolysis of water is a HIGHLY expensive process, therefore, in INDUSTRY , it is manfactured by partial oxidation of natural gas or NAPHTHA. `underset("Natural gas")(CH_(4)(g)) + underset("NI")(1270K)to underset("Syn gas")ubrace (CO(g) + 3H_(2)(g))` `underset("Naphtha")(C_(n)H_(2n+2))+ underset("Steam")(nH_(2)O) underset(Ni) overset(1270K)to nCO + (2n+1)H_(2)` CO is then removed from syn gas by water gas shift reaction.