Respuesta :
A reaction is moving most slowly when its reactant/product mix is 90% product, 10% reactant. Hence Option (A) is correct.
What is Rate of reaction ?
The reaction rate or rate of reaction is the speed at which a chemical reaction takes place, defined as proportional to the increase in the concentration of a product per unit time and to the decrease in the concentration of a reactant per unit time.
Therefore, A reaction is moving most slowly when its reactant/product mix is 90% product, 10% reactant. Hence Option (A) is correct.
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