Alcohols Phenols and EthersmediumNUMERICAL

To synthesize methyl tert-butyl ether via the Williamson synthesis, sodium tert-butoxide must react Alcohols Phenols and Ethers Chemistry Question

Question

To synthesize methyl tert-butyl ether via the Williamson synthesis, sodium tert-butoxide must react with methyl bromide. Because the reaction follows a concerted bimolecular nucleophilic substitution pathway, what is the exact kinetic molecularity of the rate-determining step?

Answer: 2

💡 Solution & Explanation

The Williamson ether synthesis strictly follows an $S_N2$ mechanism (Substitution Nucleophilic Bimolecular). In an $S_N2$ reaction, the rate-determining step involves the simultaneous collision and reaction of two species (the nucleophilic alkoxide and the electrophilic alkyl halide), making the molecularity exactly 2.

💬
Still have doubts about this question?
Send it to our AI chemistry tutor on WhatsApp — gets answered in minutes
Ask on WhatsApp →

Practice 22,000+ questions like this

AI-adaptive practice, video lectures, and full JEE Advanced Chemistry content — all in one place.

JEE Advanced · JEE Mains · NEET · IChO · AP Chemistry