Question

Electrometric effect ??
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Answer 1

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$\mathtt{Electrometric\:Effect}$

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• ${\underline{\bf{What\:is\:Electrometric\:Effect?}}}$

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Electromeric effect is a temporary effect and observed only in organic compounds with multiple bonds in the presence of an attacking reagent.

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• ${\underline{\bf{Definition}}}$

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Electromeric effect can be defined as the complete transfer of shared pair of pi electrons of multiple bonds to one of the atoms in presence of an attacking reagent.

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• ${\underline{\bf{Types.\:of\:Electrometric\:Effect?}}}$

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${\underline{\bf{1.\:+E\:Effect}}}$

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This effect occurs when the electron pair of the pi bond is moved towards the attacking reagent. The +E effect can be observed in the addition of acid to alkenes. The attacking reagent attaches itself to the atom which obtained an electron pair in the transfer.

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${\underline{\bf{2.\:-E\:Effect}}}$

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This effect occurs when the electron pair of the pi bond is moved away from the attacking reagent. The attacking reagent attaches itself to the positively charged atom in the molecule, i.e. the atom which lost the electron pair in the transfer.

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$\bf{Hope\:it\:helps\:you..}$

Answer 2

Electromeric effect refers to a molecular polarizability effect occurring by an intramolecular electron displacement characterized by the substitution of one electron pair for another within the same atomic octet of electrons.

This effect is shown by those compounds containing multiple bonds.

Electromeric effect can be classified into :

+E and -E effects

1. +E effect is the breaking of non polar double bond or triple bond in the presence of attacking reagent as Electrophile.
2. -E effect is the breaking of polar double bond or triple bond in the presence of attacking reagent as Nucleophile.