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Question
Which one of the following electronic effect is Temporary ?
Which one of the following electronic effect is Temporary ?
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Solution
The correct option is B Electromeric
Inductive effect:
Permanent polarisation of bond due to shifting of shared pair of sigma electrons towards the more electronegative atom/substituent. so it is a Permanent electronic effect.
Resonance Effect :
Delocalisation of π electrons; it's also a permanent effect.
Hyperconjugation:
Hyperconjugation effect is a permanent effect in which delocalization of σ electrons of C-H bond of an alkyl group directly attached to an atom of the unsaturated system or to an atom with an empty or partially filled p-orbital takes place.
Electromeric Effect :
it is defined as complete transfer of electrons of a multiple bond toward one of the bonded atom and is a purely temporary effect. It takes place in presence of reactive species only.
Inductive effect:
Permanent polarisation of bond due to shifting of shared pair of sigma electrons towards the more electronegative atom/substituent. so it is a Permanent electronic effect.
Resonance Effect :
Delocalisation of π electrons; it's also a permanent effect.
Hyperconjugation:
Hyperconjugation effect is a permanent effect in which delocalization of σ electrons of C-H bond of an alkyl group directly attached to an atom of the unsaturated system or to an atom with an empty or partially filled p-orbital takes place.
Electromeric Effect :
it is defined as complete transfer of electrons of a multiple bond toward one of the bonded atom and is a purely temporary effect. It takes place in presence of reactive species only.
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