Case based question of organic chemistry
Dear student,
40) Electron withdrawing groups like -NO2 increases the acidity of phenol and electron-donating group like -CH3, -OCH3 decreases the acidity of phenols.
Hence, phenol is less acidic than o-nitrophenol because o-nitrophenol contains nitro group which is electron-withdrawing.
Hence, the correct option is (B).
41) -Cl group is an electron-withdrawing group. Halogens have both +R and -I effect but for halogens -I effect dominates over +R.
Hence, the correct option is (D).
Regards
40) Electron withdrawing groups like -NO2 increases the acidity of phenol and electron-donating group like -CH3, -OCH3 decreases the acidity of phenols.
Hence, phenol is less acidic than o-nitrophenol because o-nitrophenol contains nitro group which is electron-withdrawing.
Hence, the correct option is (B).
41) -Cl group is an electron-withdrawing group. Halogens have both +R and -I effect but for halogens -I effect dominates over +R.
Hence, the correct option is (D).
Regards