Select the correct statement(s) (a) The rate of reaction decreases with decrease in temperature ...

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Select the correct statement(s)
(a) The rate of reaction decreases with decrease in temperature
(b) The rate of reaction is uniform in zero order reaction
(c) The rate of reaction depends upon the surface area of the solid reactants
(d) Average and instantaneous rate of reaction defined for micro and macro-scopic time interval respectively
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