Which of the following curves represents a first order reaction.

Which of the following curves represents a third order reaction ?

Which of the following graphs represents a first order reaction ?

Which of the following curves represents a second order reaction ? [x = product oncentration (a-x) = reactant 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 does not represent a first order reation?

Which of the following does not represent a first order reation?