Identify Z in the following series: 1\(CH_3CH_2CN\)2\(NCCH_2-CH_2CN\)3\(BrCH_2-CH_2Br\)4\(BrCH=CHBr\)Answer & explanation+Correct answer: option 2The correct answer is option 2. \(NCCH_2-CH_2CN\).