Which one of the following statements is not correct? - Vidyadip

MCQ

Which one of the following statements is not correct?

A
Alcohols are weaker acids than water
B
Acid strength of alcohols decreases in the following $RCH_2OH > R_2CHOH > R_3COH$
✓
Carbon-oxygen bond length in methanol, $CH_3OH$ is shorter than that of $C - O$ bond length in phenol
D
The bond angle $image$ in methanol is $108.9^o$.

✓

Answer

Correct option: C.

Carbon-oxygen bond length in methanol, $CH_3OH$ is shorter than that of $C - O$ bond length in phenol

c
The $C-O$ bond length in alcohol is $142\,pm$ and in phenol it is $136\,pm$. The $C-O$ bond length in phenol is shorter than that in methanol due to the conjugation of unshared pair of electrons on oxygen with the ring, which imparts double bond character to the $C-O$ bond.

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