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In collision theory of chemical reaction, $Z_{AB}$ represents
A
the fraction of molecules with energies equal to $E_a$
B
the fraction of molecules with energies greater than $E_a$
C
the collision frequency of reactants, A and B
D
steric factor
Detailed Solution
In collision theory, $Z_{AB}$ represents the collision frequency of the reactants A and B, i.e. the number of collisions per unit time per unit volume.