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  • Which of the statements are correct about the above reaction? (a) Both (i) and (v) are nucleophiles

Which of the statements are correct about above reaction?

(i) (a) and (e) both are nucleophiles.

(ii) In (c) carbon atom is sp3 hybridised.

(iii) In (c) carbon atom is sp2 hybridised.

(iv) (a) and (e) both are electrophiles.

Answers (1)

(i), (iii)

OH^{-} and Cl^{-}are nucleophiles. In (c), the C atom is sp2 hybridized due to the formation of the C – OH bond and the breaking of the C – Cl bond simultaneously. 

A nucleophile is a chemical species that forms bonds by donating an electron pair. All molecules and ions with a free pair of electrons or at least one pi bond can act as nucleophiles. Because nucleophiles donate electrons, they are Lewis bases.

The movement of an electron pair from the nucleophile to the electrophile is represented by a curved-arrow notation. An example of a nucleophile is negatively charged species such as cyanide ion.

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