The rate equation for the reaction 2A + B → C is found to be : rate = k[A] [B]. The correct statement in relation to this reaction is that the
(a) unit of k must be s–1
(b) t1/2 is a constant
(c) rate of formation of C is twice the rate of disappearance of A
(d) value of k is independent of the initial concentrations of A and B.
