[" During dehydration of alcohols to alkenes by "],[" heating with concentrated "H_(2)SO_(4)" the "],[" initiation step is "],[[" (1) "," protonation of alcohol molecule "],[" (2) "," formation of carbocation "],[" (3) "," elimination of water "],[" (4) "," formation of an ester "],[" 1) "0," 2) "0," 3) "0],[" Save & Next "," Save & Mark for Review "]]