Which of the following expression is correct for first order reaction? Ao refers to initial concentration of reactant

Which of the followoing expression is correct for first order reaction ? (CO) refers to initial concentration of reactant.

Which of the following expresison is correct for first order reaction ( c_(0) refers to initial concentration of reactant)

Which of the following expresison is correct for first order reaction ( c_(0) refers to initial concentration of reactant)

Which of the following is/are correct for the first order reaction ? (a is initial concentration of reactant, x is concentration of the reactant reacted and t is time)

Which of the following is/are correct for the first order reaction ? (a is initial concentration of reactant, x is concentration of the reactant reacted and t is time)

Which of the following expressions is correct for zero order respectively [Where a is initial concentration]?

Which of the following expressions is correct for zero order respectively [Where a is initial concentration]?

Which of the following graphs represent a first order reaction (a=initial concentration of reactant, x=concentration of reactant consumed, t=time)

Which of the following is correct for zero and first order reactions respectively, where 'a' is initial concentration of the reactant ?