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MHT CET202123 Sep 2021Morning ShiftChemistryChemical KineticsActual

If decomposition of hydrogen peroxide is a first order reaction, it's rate law equation can be represented as

Options

  1. Ar = k [ H ₂ O ₂ ]
  2. Br = k [ H ₂ O ₂ ]
  3. Cr = k [ H ₂ O ] [ O ₂ ]^ 1 / 2 [ H ₂ O ₂ ]
  4. Dr = k [ H ₂ O ₂ ] [ H ₂ O ₂ ] [ O ₂ ]^ 1 / 2

Correct answer

B. r = k [ H ₂ O ₂ ]

Step-by-step solution

H ₂ O ₂ H ₂ O + 1 2 O ₂ Reaction is first order reaction. Rate law equation can be represented as, R = k [ H ₂ O ₂ ]^1

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