AP EAMCET202317 May 2023Morning ShiftChemistryAlcohols Phenols and EthersActual
1 - Chloro - 4 - nitrobenzene, 1 - Chloro - 2 , 4 - dinitrobenzene and 1 - Chloro - 2, 4, 6trinitrobenzene are transformed to corresponding phenols with the reagents X , Y , Z respectively. What are X , Y , Z ?
Options
- AX = H ₂ O ; Y = NaOH , 365 ~K ; Z = NaOH , 445 ~K
- BX = (i) NaOH , 443 ~K , Y = (i) NaOH , 368 ~K , (ii) H ⁺ ; (ii) H ⁺ ; Z = Warm H ₂ O
- Carray ll X = (i) NaOH , 625 ~K , Y = (i) NaOH , 440 ~K (ii) H ⁺ & (ii) H ⁺ Z = H ₂ O / H ⁺ & array
- DX = NaOH , 625 ~K ; Y = H ₂ O ; Z = NaOH , 440 ~K
Correct answer
B. X = (i) NaOH , 443 ~K , Y = (i) NaOH , 368 ~K , (ii) H ⁺ ; (ii) H ⁺ ; Z = Warm H ₂ O
Step-by-step solution
The reactivity of chlorobenzene increases with more NO ₂ groups and thus, nucleophilic substitution requires milder conditions.