1. Tardigrade
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  3. Chemistry
  4. Assertion: The overall order of the reaction is the sum of the exponents of all the reactants in the rate expression. Reason: There are many higher order reactions.

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Q. Assertion : The overall order of the reaction is the sum of the exponents of all the reactants in the rate expression.
Reason : There are many higher order reactions.

AIIMSAIIMS 2010Chemical Kinetics

Solution:

Reactions of higher order are rare because chances for larger number of molecules to come simultaneously for collision are less.