For a reaction, A+2 B Products, when concentration of B alone is increased half-life remains the same. If concentration of A alone is doubled, rate remains the same. The unit of rate constant for the reaction is

Step-by-step solution

For the reaction, A+2 B Products Half-life (t_ 1 / 2 ) remains same as [B] increases for lst order, t_ 1 / 2 l [B] w.r.t. B , reaction is of first order. Also, as [A] is doubled, rate remains constant. It is zero order w.r.t. A . Rate law expression is k[A]⁰[B]¹ Overall order =0+1=1 Unit of k= s ⁻¹