$\begin{matrix}
O\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
||\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
Ph-C-H+P{{h}_{3}}P=CH-Ph\to \underset{(cis\,and\,\,trans)}{\mathop{Ph-CH=CH-Ph+POP{{h}_{3}}}}\, \\
\end{matrix}$
વિધાન $I:$આલ્કીનોમાં રહેલા નિર્બળ $\pi$-બંધ તેમને આલ્કેનો કરતા ઓછા સ્થિર બનાવે છે.
વિધાન$II:$કાર્બન-કાર્બન દ્વિબંધનું સામર્થ્ય એ તેના કાર્બન-કાર્બન એકલ કરતાં ખૂબ વધારે હોય છે.
સાચી વિકલ્પ પસંદ કરો.