The rate of a reaction is expressed in different ways as follows:
$ +\frac{1}{2} \frac{d[C]}{d t}=-

Question

The rate of a reaction is expressed in different ways as follows: 
$ +\frac{1}{2} \frac{d[C]}{d t}=-\frac{1}{3} \frac{d[D]}{d t}=+\frac{1}{4} \frac{d[A]}{d t}=-\frac{d[B]}{d t} $ 
The reaction is:

Professor PC Thomas Classes · Answer

See detailed solution for explanation.