1.

What is the relative rate of reaction for the given reaction.
2A + 9B 7C + 4D

A. r<sub>A</sub> = -9rB=7rC= 4rD
B. r<sub>A</sub> =-rB/9=rC/7=rD/4
C. r<sub>A</sub> =-rB/9=7rC=4rD
D. r<sub>A</sub> = 9rB=-7rC= 4rD
Answer» C. r<sub>A</sub> =-rB/9=7rC=4rD


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