Chemistry - AMINES Question with Solution | TestHub

The total number of reagents from those given below, that can convert nitrobenzene into aniline is __________ . (Integer answer)
I.$\mathrm{Sn}-\mathrm{HCl}$
II.$\mathrm{Sn}-{\mathrm{NH}}_4\mathrm{OH}$
III.$\mathrm{Fe}-\mathrm{HCl}$
IV.$\mathrm{Zn}-\mathrm{HCl}$
V.${\mathrm{H}}_2-\mathrm{Pd}$
VI.${\mathrm{H}}_2-$Raney Nickel