Chemical Kinetics: JEE Main 2026 Chemistry question

Given below are two statements : $R=8.314$ J K$^{-1}$ mol$^{-1}$ and 1 cal = 4.2 J. Statement I: When Ea = 12.6 kcal/mol, the room temperature rate constant is doubled by a 10 °C increase in temperature (298 K to 308 K). Statement II: For a first order reactions A → B, [graph of $t_{1/2}$/s versus $[A]_0$/mol L$^{-1}$ is a straight line through the origin]. Here $[A]_0$ is the initial concentration of A and $t_{1/2}$ is half life of reaction. In the light of the above statements, choose the correct answer from the options given below :