JEE Main Chemistry question

ChemistryChemical KineticsJEE Main

The concentration of a reactant X decreases from 0.1 M to 0.005 M in 40 min. If the reaction follows first order kinetics, the rate of the reaction when the concentration of X is 0.01 M will be [Jamia Millia Islamia 2008]

Answer: (D)

Solution

\dfrac{2.303}{40}$=20==0.0

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Question ID VK-144231