Chemistry Of Hydrocarbons - Online Mcqs Test - Chemistry 12th (Part II) Chemistry XII Class MCQs – Chemistry Of Hydrocarbons – 12th Chemistry Of Hydrocarbons – Online Mcqs Test (25 Mcqs) 1/25jQuizMe *The number of sigma and pi bonds in the structure of ethene is:4 sigma and 2 pi bond 5 sigma and 2 pi bonds None of the above 5 sigma and 1 pi bond Chemistry Notes XII,Chemistry Online Mcqs XII Online MCQs Test - Part III Chemistry Of Hydrocarbons Chapter List | Theory & Question Answers | Mcqs | Online Mcqs