MCQ
Which one is false in the following statement:
  • A
    A catalyst is specific in its action.
  • B
    A very small amount of the catalyst alters the rate of a reaction.
  • C
    The number of free valencies on the surface of the catalyst increases on subdivision.
  • $Ni$ is used as catalyst in the manufacture of ammonia in the redox reaction.

Answer

Correct option: D.
$Ni$ is used as catalyst in the manufacture of ammonia in the redox reaction.
known as Born$-$Haber's cycle catalyst $Fe$ is used not $Ni.$

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