Arrange the following compounds in increasing order of C - O H bond length: methanol, phenol, p -ethoxyphenol

1. methanol $<\mathrm{p}$ -ethoxyphenol $<$ phenol
2. phenol $<$ methanol $<\mathrm{p}$ -ethoxyphenol
3. phenol $<\mathrm{p}$ -ethoxyphenol $<$ methanol
4. methanol $<$ phenol $<\mathrm{p}$ -ethoxyphenol

Solution

There is not any resonance in CH3–OH. Resonance is poor in p-Ethoxyphenol than phenol . So C-OH bond lengh order is: ${\mathrm{CH}}_3\mathrm{OH}$ >p-Ethoxyphenol > phenol

Asked in: JEE Main 2020 (08 Jan Shift 1)

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