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JEE Main202623 January 2026Evening ShiftChemistryChemical KineticsActual

Given above is the concentration vs time plot for a dissociation reaction : A nB . Based on the data of the initial phase of the reaction (initial 10 min), the value of n is _ _ _ _ .

Options

  1. A3
  2. B2
  3. C4
  4. D5

Correct answer

A. 3

Step-by-step solution

A nB At t = 0 : [A] = 0.05 M, [B] = 0 At t = 10 min: [A] = 0.04 M, [B] = 0.01 n From the graph, [B] at t = 10 min = 0.03 M 0.01 n = 0.03 n = 3

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