This question relates to the1H-NMR spectrum of an alkane and two alkenes. How many proton environments are there in 2-methylbut-2-ene? How many proton environments are there in 1-bromo-4-chlorobutane? How many proton environments are there in trans-2-pentene What are the multiplicities of each proton environment in 2-methylbut-2-ene? What are the multiplicities of each proton environment in 1-bromo-4-chlorobutane? What are the multiplicities of each proton environment in trans-2-pentene?