Given below are two statements : \ Statement (I) : p-Nitrophenol is more acidic than $m$-nitropheno

Question

Given below are two statements : \ Statement (I) : p-Nitrophenol is more acidic than $m$-nitrophenol and $o$-nitrophenol.\ Statement (II) : Ethanol will give immediate turbidity with Lucas reagent.\ In the light of the above statements, choose the correct answer from the options given below :\

Professor PC Thomas Classes · Answer

(d) : $p$-Nitrophenol is more acidic than meta and ortho-isomers.\ The electron withdrawing group, $-\mathrm{NO}_{2}$ stabilises the phenoxide ion through $-R$ effect at the ortho and para position. The effective delocalisation of negative charge in phenoxide ion enhance the acidic strength of phenols. The $-\mathrm{NO}_{2}$ group at meta position will show $-I$ effect only. The $-\mathrm{NO}_{2}$ group at ortho position forms hydrogen bond with -OH group.\ Ethanol being primary alcohol does not react with Lucas reagent at room temperature. Tertiary alcohol will give turbidity immediately.\