Match the entries of column I with appropriate entries of column II and choose the correct option out of the four options given.

(i)-(b), (ii)-(a), (iii)-(d), (iv)-(c)

(i) Rate law is the mathematical expression for rate of reaction.

(ii) Rate of reaction for zero order reaction is equal to rate constant.

For e.g., If A → B is a zero-order reaction,

r = k[A]⁰ = k 

(iii) Units of rate constant for zero order reaction is same as that of rate of a reaction.

(iv) Order of a complex reaction is determined by order of slowest step.