Question
Chemistry Question on Alcohols, Phenols and Ethers
With respect to the compounds I-V , choose the correct statement(s).
A
The acidity of compound I is due to delocalization in the conjugate base.
B
The conjugate base of compound IV is aromatic.
C
Compound II becomes more acidic, when it has a -NO2 substituent.
D
The acidity of compounds follows the order I >IV >V >II >III.
Answer
The acidity of compound I is due to delocalization in the conjugate base.
Explanation
Solution
A. is a conjugate base of compound I Which is stabilized by delocalization or resonance.
B. is a conjugate base of, which is an aromatic compound.
C. –NO2 group is a strong electron-withdrawing group, which increases the acidic strength of compound II.
D. The order of acidic strength.