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ChemistryJEE Main 2 Apr 2026, Shift 1·Q8·MCQ·Easy–moderate

Chemical Kinetics · Zero and first order completion time

t100%t_{100\%} is the time required for the 100% completion of the reaction while t1/2t_{1/2} is the time required for 50% of the reaction to be completed. Which of the following option correctly represents the relation between t100%t_{100\%} and t1/2t_{1/2} for zero and first order reactions respectively ?
  1. (1)t100%=(t1/2)2t_{100\%} = (t_{1/2})^2 and t100%=(t1/2)−∞t_{100\%} = (t_{1/2})^{-\infty}
  2. (2)t100%=2t1/2t_{100\%} = 2t_{1/2} and t100%=(t1/2)∞t_{100\%} = (t_{1/2})^{\infty}
  3. (3)t100%=2t1/2t_{100\%} = 2t_{1/2} and t100%=(2t1/2)2t_{100\%} = (2t_{1/2})^2
  4. (4)t100%=(t1/2)∞t_{100\%} = (t_{1/2})^{\infty} and t100%=2t1/2t_{100\%} = 2t_{1/2}

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See the full 2 Apr 2026, Shift 1 paper