WBCS.LIVE practice question

conversion RBr to RMgBr requires

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. Mg/dry ether/N2
  2. Mg/moist ether/N2
  3. Mg/ethanol/N2
  4. Mg/dry ether/O2

Correct answer and explanation

Correct answer: Mg/dry ether/N2

Explanation: āœ… Correct Answer: A) Mg/dry ether/N2 šŸ“š Explanation: The formation of a Grignard reagent (RMgBr) requires reacting an alkyl bromide with magnesium in the presence of 'dry ether'. Ether acts as a solvent and stabilizes the reagent, while 'dry' conditions are essential because the reagent reacts violently with water. Nitrogen (N2) provides an inert atmosphere to prevent oxidation.