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Question
Identify the most stable species in the following set of ions giving reason:
\[\ce{\overset{Θ}{C}H3, \overset{Θ}{C}H2Cl, \overset{Θ}{C}HCl2, \overset{Θ}{C}Cl3}\]
Solution
\[\ce{\overset{-}{C}Cl3}\] is the most stable because Cl is more electronegative than hydrogen. On replacing hydrogen by chlorine, negative charge on C is reduced and the species becomes stable.
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Identify the most stable species in the following set of ions giving reason:
\[\ce{\overset{+}{C}H3, \overset{+}{C}H2Br, \overset{+}{C}HBr2, \overset{+}{C}Br3}\]
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\[\begin{array}{cc}
\phantom{.........}\ce{O}\\
\phantom{.........}||\\
\ce{\underset{(I)}{CH2 = CH - C - H}}
\end{array}\]
\[\begin{array}{cc}
\phantom{.........}\ce{\overset{⊕}{O}}\\
\phantom{.........}|\\
\ce{\underset{(II)}{\overset{⊕}{C}H2 - CH = C - H}}
\end{array}\]
\[\begin{array}{cc}
\phantom{.........}\ce{\overset{⊕}{O}}\\
\phantom{.........}|\\
\ce{\underset{(III)}{\overset{Θ}{C}H2 - CH = C - H}}
\end{array}\]
