Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
MHT CET202016 Oct 2020Morning ShiftChemistryHaloalkanes and HaloarenesActual

Identify the catalyst X used in following reaction? CH ₃ CH ₂ Br +2[ H ] x CH ₃- CH ₃+ HBr

Options

  1. ACaO ,
  2. BZn-Cu Couple in alcohol
  3. CKMnO ₄
  4. DK ₂ Cr ₂ O ₇

Correct answer

B. Zn-Cu Couple in alcohol

Step-by-step solution

( CH ₃ CH ₂ Br +2[ H ] [ Alcohol ] Zn - Cu ( X ) CH ₃- CH ₃+ HBr ) In alcohol, [X] is a ( Zn - Cu ) couple. When ethyl bromide is treated with the ( Zn )-Cu pair and alcohol in this reaction, ethyl bromide is converted to ethane. This is a redox reaction in a sense. In it, ethyl bromide is reduced to form an ethyl organometallic and Brwhich is then protonated by ethanol to form ethane.

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