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Write short notes on (i) + E effect and (ii) -E effect |
Answer» Solution :When the ` pi` electron is transferred TOWARDS the attscking reagent it is called + E (positive electromeric ) effect .  The addition of ` H^(+)` to alkene as SHOWN above is an examples of +E effect . When the electron is transfered AWAY from the attacking reagent , it is called , - E (negative electromeric ) effect . 
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