Which of the following statements is correct ?A. The rate of a reaction decrease with passage of time as the concentration of reactants decreaseB. The rate of a reaction is same at any time during the reactionsC. The rate of a reaction is indepent of temperature changeD. The rate of a reaction decreases with increase in concentration ofreactant(s).

Which of the following statements is correct ?A. The rate of a reactio

1.	Which of the following statements is correct ?A. The rate of a reaction decrease with passage of time as the concentration of reactants decreaseB. The rate of a reaction is same at any time during the reactionsC. The rate of a reaction is indepent of temperature changeD. The rate of a reaction decreases with increase in concentration ofreactant(s).
Answer» Correct Answer - A Rate of reactions is defined as rate of decrease of concentration of any one of reactant with passage of time . `"Rate of reaction"=("Rate of disappearance of reactant")/("Time taken")` `r =(-dx)/(dt)` Thus, as the concentration of reactant decreases with passage of time, rate of rectant decreases.

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