For a general reaction `X to Y`, the plot of conc. Of X vs Time is given in the figure. What is the order of the reaction and what are the units of rate constant?

Options

A. zero, mol `L^(-1) s^(-1)`
B. First, mol `L^(-1) s^(-1)`
C. First, `s^(-1)`
D. Zero, L `mol^(-1) s^(-1)`

Answer

A

Explanation

For a zero order reaction, rate `= k = (dx)/(dt)`
Unit of `k = mol L^(-1) s^(-1)`