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ChemistryJEE Main 4 Apr 2026, Shift 1·Q7·MCQ·Easy

Chemical Kinetics · First order integrated rate law

Consider the first order reaction R→P\ce{R -> P}.

The fraction of molecules decomposed in the given first order reaction can be expressed as

  1. (1)1−ek1t1-e^{k_1t}
  2. (2)1+ek1t1+e^{k_1t}
  3. (3)1+e−k1t1+e^{-k_1t}
  4. (4)1−e−k1t1-e^{-k_1t}

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