MHT CET202616 April 2026Evening ShiftChemistryAlcohols Phenols and EthersActual
What is action of CH ₃ ONa on CH ₃ CH ₂ Br CH ₃ ONa + CH ₃ CH ₂ Br ?
Options
- AFormation of CH ₃ OCH ₂ CH ₃ + NaBr
- BFormation of CH ₃ OH + NaBr
- CFormation of CH ₃ CH ₂ OH
- DFormation of ( CH ₃)₂ O
Correct answer
A. Formation of CH ₃ OCH ₂ CH ₃ + NaBr
Step-by-step solution
The reaction between sodium methoxide ( CH ₃ ONa ) and ethyl bromide ( CH ₃ CH ₂ Br ) is an example of Williamson ether synthesis. The methoxide ion ( CH ₃ O ⁻ ) acts as a nucleophile and attacks the primary alkyl halide ( CH ₃ CH ₂ Br ) via an S_N2 mechanism. The reaction proceeds as follows: CH ₃ ONa + CH ₃ CH ₂ Br CH ₃ OCH ₂ CH ₃ + NaBr The products formed are ethyl methyl ether and sodium bromide. Answer: Formation of CH ₃ OCH ₂ CH ₃ + NaBr