1.

The correct difference between first and second order reaction is that

Answer»

The rate of a FIRST order reaction does not DEPEND on reactant CONCENTRATION , the rate of a second order reaction does depend on reactant concentrations
The half life of a first order reaction does not depend on `[A]_(0)` : the half life of a second order reaction does depend on `[A]_(0)`
A first order reaction can be catalyzed , a second order reaction cannot be catalyzed
The rate of a first order reaction does depend on reactant concentrations , the rate of a second order reaction does not depend on reactant concentrations

Solution :`(t_(1//2)) 1^(st)` order = Independent of concentration
`(t_(1//2)) 2^(nd)` order `prop (1)/([A]_(0))`


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