An aromatic ether is not cleaved by HI even at $525 \mathrm{~K}$. The compound is

An aromatic ether is not cleaved by HI even at $525 \mathrm{~K}$. The compound is
  1. $\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{OCH}_{3}$
  2. $\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{OC}_{6} \mathrm{H}_{5}$
  3. $\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{OC}_{3} \mathrm{H}_{7}$
  4. Tetrahydrofuran

Solution

Due to greater electronegativity of $s p^{2}$ -hybridized carbon atoms of the benzene ring, diaryl ethers are not attacked by nucleophiles like $\mathrm{I}^{-}$. .

Asked in: JEE-TOPICTESTS-CHEMISTRY

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