Question

What is Nucleophilic substitution reaction?​

Answer 1

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A nucleophilic substitution is a class of chemical reactions in which an electron-rich chemical species replaces a functional group within another electron-deficient molecule. The molecule that contains the electrophile and the leaving functional group is called the substrate.

Explanation:

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Answer 2

Nucleophilic substitution is a reaction in which a leaving group is replaced by an electron rich compound.

»An example of nucleophilic substitution is the hydrolysis of an alkyl bromide, R-Br under basic conditions, where the attacking nucleophile is OH− and the leaving group is Br−.