JEE MAIN - Chemistry (2020 - 8th January Morning Slot - No. 3)
Arrange the following compounds in increasing order of C–OH bond length :
methanol, phenol, p-ethoxyphenol
methanol, phenol, p-ethoxyphenol
phenol < methanol < p-ethoxyphenol
methanol < p-ethoxyphenol < phenol
methanol < phenol < p-ethoxyphenol
phenol < p-ethoxyphenol < methanol
Explanation
C-OH bond length in Among methanol, phenol and
p-ethoxyphenol, C-OH bond length is least in phenol due to
resonance and maximum in methanol due to
lack of resonance whereas it will have some
intermediate value in p-ethoxyphenol.
phenol < p-ethoxyphenol < methanol
phenol < p-ethoxyphenol < methanol
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