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MHT CET Chemistry Chemical Kinetics 2026 MHT CET 2026 (15 April Shift 2)

MHT CET Chemistry Question (2026) — Solution

Question

For the reaction 2 A 3 C + D , the rate of reaction is represented by

Options

  1. A. - d [A]/ dt = - d [D]/ dt
  2. B. - d [C]/ dt = -2 d [A]/ dt
  3. C. - d [A]/ dt = - d [D]/ dt
  4. D. - 1 2 d [A] dt = + 1 3 d [C] dt

Answer

D. - 1 2 d [A] dt = + 1 3 d [C] dt

Step-by-step solution

For the reaction 2 A 3 C + D , the rate of reaction is expressed as the rate of disappearance of reactants divided by their stoichiometric coefficients, which is equal to the rate of appearance of products divided by their stoichiometric coefficients. Rate = - 1 2 d [ A ] dt = + 1 3 d [ C ] dt = + d [ D ] dt Comparing this with the given options, the correct relationship is - 1 2 d [ A ] dt = + 1 3 d [ C ] dt . Answer: - 1 2 d [A] dt = + 1 3 d [C] dt

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