Master NCEA Level 3 Organic Chemistry Reaction Schemes. Prepare with multiple choice questions, complete with hints and detailed explanations. Ace your exam with our comprehensive tools!

Multiple Choice

NH3 warm on a haloalkane yields which product?

Warm ammonia acts as a nucleophile and substitutes the halogen on the haloalkane. In an SN2 step, the lone pair on nitrogen attacks the carbon bonded to the leaving group, the halide leaves, and you form an R–NH3+ intermediate that is deprotonated (by ammonia) to give the primary amine, R–NH2. So the product is an aminoalkane (a primary amine). This transformation isn’t about forming an alcohol, halogenating an alcohol, or adding halogen across a double bond, which would require different reagents or conditions.

Warm ammonia acts as a nucleophile and substitutes the halogen on the haloalkane. In an SN2 step, the lone pair on nitrogen attacks the carbon bonded to the leaving group, the halide leaves, and you form an R–NH3+ intermediate that is deprotonated (by ammonia) to give the primary amine, R–NH2. So the product is an aminoalkane (a primary amine). This transformation isn’t about forming an alcohol, halogenating an alcohol, or adding halogen across a double bond, which would require different reagents or conditions.