323024
Read the Statement - A and Statement - B carefully to mark the correct options given below Statement A : p-Nitrophenol is more acidic than m-nitrophenol and o-nitrophenol. Statement B : Ethanol will give immediate turbidity with Lucas reagent.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
\({\mathrm{p}}\)-Nitrophenol is more acidic than meta and ortho-isomers. The electron withdrawing group, \({\mathrm{-\mathrm{NO}_{2}}}\) 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 \({\mathrm{-\mathrm{NO}_{2}}}\) group at meta position will show \(-\)I effect only. The \({\mathrm{-\mathrm{NO}_{2}}}\) 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 with Lucas reagent. So, correct option is (1).
JEE Main - 2024
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323025
The formula \(\mathrm{C}_{3} \mathrm{H}_{8} \mathrm{O}\) represents:
323024
Read the Statement - A and Statement - B carefully to mark the correct options given below Statement A : p-Nitrophenol is more acidic than m-nitrophenol and o-nitrophenol. Statement B : Ethanol will give immediate turbidity with Lucas reagent.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
\({\mathrm{p}}\)-Nitrophenol is more acidic than meta and ortho-isomers. The electron withdrawing group, \({\mathrm{-\mathrm{NO}_{2}}}\) 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 \({\mathrm{-\mathrm{NO}_{2}}}\) group at meta position will show \(-\)I effect only. The \({\mathrm{-\mathrm{NO}_{2}}}\) 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 with Lucas reagent. So, correct option is (1).
JEE Main - 2024
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323025
The formula \(\mathrm{C}_{3} \mathrm{H}_{8} \mathrm{O}\) represents:
