Activation energy of any chemical reaction can be calculated if one knows the value of

Activation energy of a chemical reaction can be determined by

Which of the following plots is in accordance with the Arrhenius equation?

Consider the following statements:
$(i)$ Increase in concentration of reactant increases the rate of a zero order reaction
$(ii)$ Rate constant $k$ is equal to $A$ if $E_a = 0$
$(iii)$ Rate constant $k$ is equal to $A$ if $E_a = \infty$
$(iv)$ $\log_e k$ vs $T$ is a straight line
$(v)$ $\log_e k$ vs $1/T$ is a straight line
Which of the following statements are correct?

For an effective collision to occur,the colliding molecules must possess:

In the given expression $r = P Z_{AB} e^{-E_a/RT}$,which term is called the steric factor?