When Two Different Substrates React to Form Two Different Products,the

Multiple Choice

When two different substrates react to form two different products,the rate constants for each separate substrate can be determined by

A) varying one substrate at a time,keeping the other in excess.
B) varying both substrates and measuring the appearance of the two products.
C) limiting one substrate and varying the other.
D) keeping both substrate concentrations high and detecting one product at a time.