Select the nucleophile from the following examples:
Correct answer: B. NH3
- A. NO2
- B. NH3
- C. NO2+
- D. NH4+
Explanation
A nucleophile is electron-rich species and donates electron pairs to electron-deficient species. Therefore, ammonia (NH3) is a nucleophile.
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About Nucleophilic Substitution
Nucleophilic substitution replaces a leaving group in an alkyl halide when an electron-rich nucleophile attacks the carbon atom. The topic compares SN1 and SN2 mechanisms, including reaction conditions, substrate structure, solvent effects, nucleophile strength, carbocation formation and stereochemical changes, and distinguishes substitution from elimination.
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