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What is molecularity of a reaction ?...

What is molecularity of a reaction ?

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The number of reacting species (atoms, ions or molecules) taking part in an elementary reaction which must collide simultaneously in order to bring about a chemical reaction is called molecularity of a reaction.
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Knowledge Check

  • Which one of the following is wrong about molecularity of a reaction ?

    A
    It may be whole number or fractional
    B
    It is calculated from reaction mechanism
    C
    It is the number of molecules of the reactants taking part in a single step chemical reactions.
    D
    It is always equal to the order fo elementary reaction

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