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. 1,2 and 3 are correct
B. 1 and 2 are correct
C. 2 and 3 are correct
D. 1 and 3 are correct

Answer

C

Explanation

Statement (1) cannot be correct because the rate of zero order reactions does not depend on concentrartion of reactant