15 public questions tagged with this topic.
CH₃CH₂CH₂Br undergoes SN₂ substitution with NaSCH₃ to form CH₃CH₂CH₂SCH₃ (methyl propyl sulfide).
Ref: NCERT Class 12 Chemistry > Chapter 6: Haloalkanes and Haloarenes > Topic: Polyhalogen Compounds - Chloroform Iodoform DDT Freons
Excess NH₃ substitutes I in CH₃CH₂CH₂I to form CH₃CH₂CH₂NH₂ (propylamine) via SN₂ .
Ref: NCERT Class 12 Chemistry > Chapter 6: Haloalkanes and Haloarenes > Topic: Physical Properties - Boiling Point Dipole Moment Solubility
SN₂ favors primary halides due to less steric hindrance. CH₃CH₂CH₂Cl (1-chloropropane) is most reactive among the options.
Ref: NCERT Class 12 Chemistry > Chapter 6: Haloalkanes and Haloarenes > Topic: Physical Properties - Boiling Point Dipole Moment Solubility
SN₁ reactivity increases with carbocation stability. (CH₃)2CHCH₂C(CH₃)2Cl forms a tertiary carbocation, making it most reactive.
Ref: NCERT Class 12 Chemistry > Chapter 6: Haloalkanes and Haloarenes > Topic: Nucleophilic Substitution Reactions - SN1 and SN2 Mechanisms
SN₁ reactivity increases with carbocation stability. (CH₃)3CCl (tertiary) forms a stable tertiary carbocation, making it most reactive.
Ref: NCERT Class 12 Chemistry > Chapter 6: Haloalkanes and Haloarenes > Topic: Nucleophilic Substitution Reactions - SN1 and SN2 Mechanisms
AgCN provides NC⁻ (isocyanide ion), reacting with CH₃CH₂Cl to form CH₃CH₂NC (ethyl isocyanide) via nucleophilic substitution.
Ref: NCERT Class 12 Chemistry > Chapter 6: Haloalkanes and Haloarenes > Topic: Nucleophilic Substitution Reactions - SN1 and SN2 Mechanisms
KCN provides CN⁻ , which undergoes nucleophilic substitution with CH₃CH₂Br to form CH₃CH₂CN (propanenitrile).
Ref: NCERT Class 12 Chemistry > Chapter 6: Haloalkanes and Haloarenes > Topic: Nucleophilic Substitution Reactions - SN1 and SN2 Mechanisms
The reactivity of alcohols with haloacids increases with the degree of substitution due to carbocation stability: tertiary > secondary > primary.
Ref: NCERT Class 12 Chemistry > Chapter 6: Haloalkanes and Haloarenes > Topic: Nucleophilic Substitution Reactions - SN1 and SN2 Mechanisms
NaSH substitutes I in CH₃CH₂I via SN₂ , forming CH₃CH₂SH (ethanethiol).
Ref: NCERT Class 12 Chemistry > Chapter 6: Haloalkanes and Haloarenes > Topic: Nature of C-X Bond and Methods of Preparation
KCN substitutes Br in CH₃CH₂CH₂Br via SN₂ , forming CH₃CH₂CH₂CN (butanenitrile).
Ref: NCERT Class 12 Chemistry > Chapter 6: Haloalkanes and Haloarenes > Topic: Nature of C-X Bond and Methods of Preparation
In SN₂ reactions, the rate depends on the leaving group. Iodide is a better leaving group than bromide due to its larger size and weaker C-X bond, so CH₃I reacts faster.
Ref: NCERT Class 12 Chemistry > Chapter 6: Haloalkanes and Haloarenes > Topic: Nature of C-X Bond and Methods of Preparation
NaSH provides SH⁻ , which substitutes Br in CH₃CH₂Br via SN₂ , forming CH₃CH₂SH (ethanethiol).
Ref: NCERT Class 12 Chemistry > Chapter 6: Haloalkanes and Haloarenes > Topic: Nature of C-X Bond and Methods of Preparation
