Question

Match the ions given in Column I with their nature given in Column II.

Column I	Column II
(i) \[\ce{CH3 - \overset{\bullet\bullet}{\underset{\bullet\bullet}{O}} - \overset{⊕}{C}H - CH3}\]	(a) Stable due to resonance
(ii) \[\ce{F3 - \overset{⊕}{C}}\]	(b) Destabilised due to inductive effect
(iii) \[\begin{array}{cc} \phantom{........}\ce{CH3}\\ \phantom{......}|\\ \ce{CH3 - C^Θ}\\ \phantom{......}|\\ \phantom{........}\ce{CH3} \end{array}\]	(c) Stabilised by hyperconjugation
(iv) \[\ce{CH3 - \overset{⊕}{C}H - CH3}\]	(d) A secondary carbocation

Answer 1

Column I	Column II
(i) \[\ce{CH3 - \overset{\bullet\bullet}{\underset{\bullet\bullet}{O}} - \overset{⊕}{C}H - CH3}\]	(a) Stable due to resonance
(ii) \[\ce{F3 - \overset{⊕}{C}}\]	(b) Destabilised due to inductive effect
(iii) \[\begin{array}{cc} \phantom{........}\ce{CH3}\\ \phantom{......}|\\ \ce{CH3 - C^Θ}\\ \phantom{......}|\\ \phantom{........}\ce{CH3} \end{array}\]	(b) Destabilised due to inductive effect
(iv) \[\ce{CH3 - \overset{⊕}{C}H - CH3}\]	(c) Stabilised by hyperconjugation (d) A secondary carbocation