Nucleophiles and electrophiles : definition
Answers
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Explanation:
A Nucleophile Is A Reactant That Provides A Pair Of Electrons To Form A New Covalent Bond. An Electrophile Is A Reactant That Accepts A Pair Of Electrons To Form A New Covalent Bond. Nucleophilicity” And “Electrophilicity” Refer To The Extent To Which A Species Can Donate Or Accept A Pair Of Electrons. Examples of nucleophiles are the halogen anions (I-, Cl-, Br-), the hydroxide ion (OH-), the cyanide ion (CN-), ammonia (NH3), and water
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Answer:
Nucleophile :- Any ion or molecule having an electron pair which is free or a pi bond containing two electrons have the ability to behave like nucleophiles.
Electrophile:- Positively loaded or neutral species are called electrophiles that are deficient in electrons and can accept a couple of electrons.
Explanation:
•Nucleophiles are basically *electron rich species* which have the ability to donate electron pairs, as discussed earlier.
•Because of this electron pair donating tendency, all nucleophiles are *Lewis Bases.*
•The word ‘nucleophile’ can be split into two parts, namely *nucleus and philo.* Philo is the Greek word for ‘love’. Therefore, nucleophiles can be thought of as *Nucleus Loving species.*
•These nucleophiles may have either a *negative, or a neutral charge.*
•The term electrophile can be split into “electro” derived from electron and “phile” which means loving.
•They are *electron-deficient* and hence electrons loving.
•They are *positively* charged or neutrally charged.
•They attract electrons. •Movement of electrons depends on the density, they move from *high-density area* to low-density area.
•They undergo electrophilic *addition and electrophilic substitution reactions*.
•An electrophile is also called a *Lewis acid.*