6 public questions tagged with this topic.
Primary halides react slowest with AgNO₃ via SN₁ . CH₃CH₂CH₂I forms AgI (yellow) slowest among the options.
Ref: NCERT Class 12 Chemistry > Chapter 6: Haloalkanes and Haloarenes > Topic: Nucleophilic Substitution Reactions - SN1 and SN2 Mechanisms
An allylic halide has the halogen on a carbon adjacent to a double bond. CH₂=CHCH₂CH₂Cl (4-chloro-1-butene) is allylic.
Ref: NCERT Class 12 Chemistry > Chapter 6: Haloalkanes and Haloarenes > Topic: Nucleophilic Substitution Reactions - SN1 and SN2 Mechanisms
AgNO₃ in ethanol tests SN₁ reactivity. (CH₃)3CBr (tertiary) forms a stable carbocation, reacting fastest.
Ref: NCERT Class 12 Chemistry > Chapter 6: Haloalkanes and Haloarenes > Topic: Nucleophilic Substitution Reactions - SN1 and SN2 Mechanisms
CH₃CHClCH₂CH₃ (2-chlorobutane) forms a planar carbocation via SN₁ , leading to a racemic mixture of 2-butanol.
Ref: NCERT Class 12 Chemistry > Chapter 6: Haloalkanes and Haloarenes > Topic: Nucleophilic Substitution Reactions - SN1 and SN2 Mechanisms
C₆H₅Cl (chlorobenzene) has a strong C-Cl bond due to sp² hybridization and resonance, making it unreactive in SN₁ with AgNO₃ .
Ref: NCERT Class 12 Chemistry > Chapter 6: Haloalkanes and Haloarenes > Topic: Nature of C-X Bond and Methods of Preparation
Primary halides undergo elimination (E₂) slowest due to less stable transition states. CH₃CH₂CH₂Cl reacts slowest among the options.
Ref: NCERT Class 12 Chemistry > Chapter 6: Haloalkanes and Haloarenes > Topic: Elimination Reactions and Reaction with Metals and Other Reactions
