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Chemistry
Which of the following is the most stable alkene?
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Q. Which of the following is the most stable alkene?
AIIMS
AIIMS 1998
Hydrocarbons
A
$RCH _{2}= CH _{2} R$
6%
B
$RCH = CHR$
19%
C
$R _{2} C = CR _{2}$
44%
D
$CH _{2}= CH _{2}$
31%
Solution:
Alkenes are reactive due to the presence of double bond. The $\pi$ -electrons are loosely held and are therefore, earily polaisable. So more the number of $e ^{-1}$ releasing alkyl group on the double bond, lesser is the stability.