Consider the following statement :
1 The rate of reaction is always proportinal to the concentration of reactants.
2 The order of an elementary chemical reaction step can be determined by examing its stoichimoetry.
3 The first order reactions follows an exponential time course.
Of these statements :

Options

A. (i), (ii) and (iii) are correct
B. (i) and (ii) are correct
C. (ii) and (iii) are correct
D. (i) and (iii) are correct

Explanation

Statements (i) and (iii) are correct.