Rajasthan BoardEnglish MediumSTD 12 ScienceChemistryAlcohols, Phenols, and Ethers1 Mark
Question
Ether is obtained from ethyl alcohol in presence of $\ce{H_{2}SO_4}$ at?
✓
Answer
Acid$-$catalyzed method of preparing symmetrical ethers from primary alcohols is temperature dependence.
At $110^\circ \ 413\ \ce{KC}$ or $383K$ to $130^\circ C$ or $403K,$ a $SN^{2 }$ reaction of the alcohol conjugate acid leads to an ether product.
At higher temperatures $($over $150^\circ C$ or $423K)$ an $E_2$ elimination takes place and instead of ether, an alkene is obtained.
Thus, Ether is obtained from ethyl alcohol in presence of $\ce{H_2SO_{4}}$ at $413K.$
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