Statements about order and molecularity

1. A.
   It is sum of power of concentration terms in rate law equation.
2. B.
   It may be integer, fraction or zero.
3. C.
   It is theoretical quantity
4. D.
   It is experimentally determined quantity.

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1. A.
   The order of reaction is always equal to molecularity.
2. B.
   The order of chemical reaction is determined experimentally.
3. C.
   The molecularity of reaction can be fractional.
4. D.
   The order of reaction depends only on stoichiometric coefficients.

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