The concentration of a reactant in a solution falls

CHEMISTRY · Single correct · A Level · Chemistry · Rate equations · Rate equations

Problem

The concentration of a reactant in a solution falls (i) from

0.2\,\text{M}

0.1\,\text{M}

2\,\text{h}

and (ii) from

0.2\,\text{M}

0.05\,\text{M}

4\,\text{h}

. The order of hydrolysis of the reactant is (a) Zero (b) Two (c) One (d) Half