Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
MHT CET202519 Apr 2025Evening ShiftChemistryHaloalkanes and HaloarenesActual

When tert butyl bromide is heated with silver fluoride the major product obtained is

Options

  1. A1-Fluoro-2-methylpropane
  2. B2-Fluoro-2-methylpropane
  3. C1-Flurobutane
  4. D2-Flurobutane

Correct answer

B. 2-Fluoro-2-methylpropane

Step-by-step solution

Halogen exchange via the Swarts reaction converts tert-butyl bromide to the corresponding fluoride through an S_N1 mechanism, favored by the stability of the tertiary carbocation intermediate. Ionization yields the tertiary carbocation: (CH₃)₃CBr (CH₃)₃C^+ + Br^- . Nucleophilic attack by fluoride ( F^- from AgF) gives the product: (CH₃)₃C^+ + F^- (CH₃)₃CF . The systematic name for (CH₃)₃CF is 2-fluoro-2-methylpropane . Among the options, only 2-fluoro-2-methylpropane corresponds to the tertiary structure formed fro

Practice Haloalkanes and Haloarenes on Quantrex Academy →

More from Haloalkanes and Haloarenes

With reference to the two statements Assertion and Reason, choose the correct option. Assertion: The order of reactivity towards S_N 1 reaction is: C₆ H₅- CH₂ Br > (CH₃ )₃- C - Br 2026What is the major product [Z] formed when compound [C] undergoes the following reactions: 2026Identify the compounds A and B from the following reaction sequence: 2026Identify the wrong statement from the following 2026Two statements, Assertion and Reason are given. With reference to them, choose the correct option. Assertion: Hydrolysis of 2-Bromo-2-methylpropane follows S_N1 mechanism which inv 2026Identify X, Y and Z. 2026Which one is an INCORRECT statement with regard to the following reaction? 2026The compound from which chlorobenzene cannot be prepared easily is 2026 Full Haloalkanes and Haloarenes list All MHT CET PYQs