Chemistry - GOC Question with Solution | TestHub

$\mathrm{p}-{\mathrm{NO}}_2-{\mathrm{C}}_6{\mathrm{H}}_4-{\mathrm{CH}}_2{}^{+}$

${\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{CH}}_2^{+}$

p-Cl-C6H4-CH2 ${}^{+}$

$\mathrm{p}-{\mathrm{CH}}_3\mathrm{O}-{\mathrm{C}}_6{\mathrm{H}}_4-{\mathrm{CH}}_2{}^{+}$