1.Among the following pairs, identify the one in which the second compound gives the higher heat of hydrogenation.a.cisciscis-but-2-ene and transtranstrans-but-2-eneb.Propene (CH3CH=CH2CH_3CH{=}CH_2CH3CH=CH2) and 2-methylpropene ((CH3)2C=CH2(CH_3)_2C{=}CH_2(CH3)2C=CH2)c.But-2-ene (CH3CH=CHCH3CH_3CH{=}CHCH_3CH3CH=CHCH3) and but-1-ene (CH3CH2CH=CH2CH_3CH_2CH{=}CH_2CH3CH2CH=CH2)d.Cyclopentene and cyclohexeneLogin to continueOnly logged in users canattempt or see the solution.