$\mathrm{O} – \mathrm{Xylene} \underset{{\mathrm{H}}_3{\mathrm{O}}^{+}}{\overset{{\mathrm{KMnO}}_4/{\mathrm{OH}}^{-}}{\to }}\mathrm{A}\stackrel{{\mathrm{NH}}_3}{\to }\mathrm{B}\stackrel{\mathrm{\Delta }}{\to }\mathrm{C}\stackrel{\mathrm{Strong} \mathrm{heat}}{\to }\mathrm{D}.\mathrm{D}\mathrm{is}$

JEE Mock Tests

JEE study guide

JEE Revision Notes

JEE Important Questions

JEE Sample Papers

JEE Previous Year's Papers

NEET previous year’s papers

NEET important questions

NEET sample papers

NEET revision notes

NEET study guide

NEET mock tests

CUET previous year’s papers

CUET important questions

CUET sample papers

CUET revision notes

CUET study guide

CUET mock tests

CBSE previous year’s papers

CBSE important questions

CBSE sample papers

CBSE revision notes

CBSE study guide

CBSE mock tests