For a hypothetical reaction, A P -> the rate constant is 0.12 s-1. Which of the following statements(s) is/are correct, if [R]0 is the initial concentration? (a) 0 1/2 R t 0.12 12 x (b) 1/2 t 2 0.12 R (c) 1/2 0.693 t 0.12 (d) 1/2 0.693 t 0.12 3 x Ans. (c) Sol. Since, the unit of rate constant is sec-1 Thus, the order of the reaction is 1. Hence, 1/2 0.693 t 0.12