Question

Which of the following is the most stable alkene?

• A. $ {{R}_{2}}C=C{{R}_{2}} $
• B. $ RCH=CHR $
• C. $ RCH=C{{H}_{2}} $
• D. $ C{{H}_{2}}=C{{H}_{2}} $

Answer 1

Answer: (A)

We know that the greater the number of alley groups attached to double bonded carbon atoms, more stable is the alkene. Therefore most stable alkene is $ {{R}_{2}}C=C{{R}_{2}} $
Order of stability of alkenes is $ C{{H}_{2}}=C{{H}_{2}}