1 - Chloro - 4 - nitrobenzene, 1 - Chloro - 2 , 4 - dinitrobenzene and 1 - Chloro - 2, 4, 6trinitrobenzene are transformed to corresponding phenols with the reagents \(\mathrm{X}, \mathrm{Y}, \mathrm{Z}\) respectively. What are \(\mathrm{X}, \mathrm{Y}, \mathrm{Z}\) ?

1. A \(\mathrm{X}=\mathrm{H}_2 \mathrm{O} ; \mathrm{Y}=\mathrm{NaOH}, 365 \mathrm{~K} ; \mathrm{Z}=\mathrm{NaOH}, 445 \mathrm{~K}\)
2. B \(\mathrm{X}=\text { (i) } \mathrm{NaOH}, 443 \mathrm{~K}, \mathrm{Y}=\text { (i) } \mathrm{NaOH}, 368 \mathrm{~K} \text {, }\)
   (ii) \(\mathrm{H}^{+}\);
   (ii) \(\mathrm{H}^{+}\);
   \(\mathrm{Z}=\text { Warm } \mathrm{H}_2 \mathrm{O}\)
3. C \(\mathrm{X}=\) (i) \(\mathrm{NaOH}, 625 \mathrm{~K}, \mathrm{Y}=\) (i) \(\mathrm{NaOH}, 440 \mathrm{~K}\)
   (ii) \(\mathrm{H}^{+}\)
   (ii) \(\mathrm{H}^{+}\)
   \(\mathrm{Z}=\mathrm{H}_2 \mathrm{O} / \mathrm{H}^{+}\)
4. D \(\mathrm{X}=\mathrm{NaOH}, 625 \mathrm{~K} ; \mathrm{Y}=\mathrm{H}_2 \mathrm{O} ; \mathrm{Z}=\mathrm{NaOH}, 440 \mathrm{~K}\)