A) \[{{R}_{2}}C=C{{R}_{2}}\]
B) \[RCH=CHR\]
C) \[C{{H}_{2}}=C{{H}_{2}}\]
D) \[RCH=C{{R}_{2}}\]
Correct Answer: A
Solution :
Key Idea: Alkylated alkenes are more stable. More the alkylation of alkene, more will be its stability. \[\therefore \] Order of stability of alkenes is \[{{R}_{2}}C=C{{R}_{2}}>{{R}_{2}}C=CHR>{{R}_{2}}C=C{{H}_{2}}\] \[>RCH=C{{H}_{2}}>C{{H}_{2}}=C{{H}_{2}}\] \[\therefore \] Tetra alkylated alkene is most stable.
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