Chemistry Hydrogen Gas can be prepared by thermal decomposition of Methane in the absence of Air at above____ Options:A. 500?CB. 700?CC. 900?CD. 1300?CView AnswerB. 700?C Continue Reading Previous: __________ is one of the allotropic modifications of carbon.Next: Water Gas is a mixture of two gases Hydrogen & Carbon monoxide, while separating Hydrogen gas by liquification process which one is liquefied first__?