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The catalyst increases the rate of reaction because it

$\begin{array}{1 1}(a)\;\text{Increases the activation energy}\\(b)\;\text{Decreases the energy barrier for reaction}\\(c)\;\text{Decreases the collision diameter}\\(d)\;\text{Increases the temperature coefficient}\end{array}$

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Decreases the energy barrier for reaction
Hence (b) is the correct option.
answered Dec 16, 2013 by sreemathi.v

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