The total number of reagents from those given below, that can convert nitrobenzene into aniline is ..... . (Integer answer)

$I.$ ${Sn}-{HCl}$       $II.$ ${Sn}-{NH}_{4} {OH}$         $III.$ ${Fe}-{HCl}$        ${IV} . {Zn}-{HCl}$               $V.$ ${H}_{2}-{Pd}$               $VI.$ ${H}_{2}-$ રેની નિકલ

  • A$3$
  • B$4$
  • C$6$
  • D$5$
JEE MAIN 2021, Medium
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