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Q.

Arrange the following compounds in increasing order of C-OH bond length; Methanol, phenol, P-ethoxyphenol

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a

Phenol < Methanol < P-Ethoxyphenol

b

Phenol < P-ethoxyphenol < Methanol

c

Methanol < Phenol < P-ethoxyphenol

d

Methanol< P-ethoxyphenol < Phenol

answer is C.

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Detailed Solution

Order of C-OH bond length
Question Image
Resonance is a deciding factors to determine the order of bond length in given compounds. Phenol exhibits least C-OH  bond length due to resonance, whereas Methonal will show maximum bond length due to lack of resonance and P – ethoxyphenol will have some intermediate value of bond length 

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