JEE Main20208 Jan 2020Morning ShiftChemistryGeneral Organic ChemistryActual
Arrange the following compounds in increasing order of C - O H bond length: methanol, phenol, p -ethoxyphenol
Options
- Amethanol < p -ethoxyphenol < phenol
- Bphenol < methanol < p -ethoxyphenol
- Cphenol < p -ethoxyphenol < methanol
- Dmethanol < phenol < p -ethoxyphenol
Correct answer
C. phenol < p -ethoxyphenol < methanol
Step-by-step solution
There is not any resonance in CH3–OH. Resonance is poor in p-Ethoxyphenol than phenol . So C-OH bond lengh order is: CH 3 OH >p-Ethoxyphenol > phenol