Which is X, Y and Z respectively ?
Alkanes with six or more C atoms, when heated under pressure in the presence of a catalyst (e.g., (Al2O3+Cr2O3), S, Se, Pt, or Pd at 600∘C), first cyclise and then aromatize to give benzene or its derivative by dehydrogenation. This reaction is also called as hydroforming, reforming, dehydrogenation, cyclisation, or aromatization. When Pt is used as the catalyst, it is called platforming.