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JEE Main Chemistry question

ChemistryChemical KineticsJEE Main

For a first order reaction, the initial concentration of a reactant is 0.05 M. After 45 min it is decreased by 0.015 M. Calculate the half reaction time (). [Guj CET 2011]

Answer: (A)

Solution

Remaining concentration after 45 min .

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Question ID VK-144287