Higher order $(> 3)$ reactions are rare due to:

  • A
    shifting of equilibrium towards reactants due to elastic collisions
  • B
    loss of active species on collision
  • C
    low probability of simultaneous collision of all the reacting species
  • D
    increase in entropy and activation energy as more molecules are involved

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Pressure $(mm \ Hg)$ $50, 100, 200$
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