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JEE Main20199 Apr 2019Evening ShiftChemistryChemical KineticsActual

Consider the given plot of enthalpy of the following reaction between A and B . A + B → C + D . Identify the incorrect statement.

Options

  1. AFormation of A and B from C has highest enthalpy of activation.
  2. BD is kinetically stable product.
  3. CC is the thermodynamically stable product.
  4. DActivation enthalpy to form C is 5 k J m o l - 1 less than that to form D .

Correct answer

D. Activation enthalpy to form C is 5 k J m o l - 1 less than that to form D .

Step-by-step solution

A + B → C + D Activation enthalpy for C = 20 - 0 = 20   k J / m o l Activation enthalpy for D = 15 - 5 = 10   k J / m o l

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