Nitrobenzene car be reduced to aniline electrolytically in acid medium. 5 amperes of current was passed through an acidified solution of Nitrobenzene for 3.2 hours and it was observed that 5.6 gms of aniline is formed. Identify incorrect statement(s)

Electrode reaction:

${\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{NO}}_2+6{\mathrm{H}}^{+}+6{\mathrm{e}}^{-}\to {\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{NH}}_2+2{\mathrm{H}}_2\mathrm{O}$

$\text{ Coulombs passed }=5\times 3.2\times 3600=57600$

(1) ${\text{ Moles of e}}^{-}=\frac{57600}{96,500}=0.6$

(2) $\text{ Weight of aniline expected }=\frac{57,600\times 93}{6\times 96,500}=9.25\text{ gms }$

$\text{ Current efficiency }=\frac{5.6}{9.25}\times 100=60.5$

(3) Weight of aniline expected for 100% efficiency = 9.25 gms

(4) Actual number of coulombs used for forming aniline

$=\frac{57,600\times 60.5}{100}=34848$

${\text{ Actual number of e}}^{-}\text{ involved in the reaction }$

$=\frac{34848\times 6\times {10}^{23}}{96,500}=2.2\times {10}^{23}.$