The reaction rate constant may be defined as the rate of the reaction when the concentration of each reactants is. •Zero
•Unity
•Doubled the initial concentration
•Infinite​

B) Unity.

Explanation:

Specific rate constant at a given temperature may be defined as the rate of reaction when the molar concentration of each reactant is unity.

✔ Unity.

EXPLANATION:

As we already know that the specific rate constant at a given temperature is defined as the rate of reaction when the molar concentration of each reactant is __unity__.

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answer; 4 electrons;