Define catalyst.

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Catalyst is something which controls the speed of a chemical reaction without getting used up in the reaction. The catalyst will be left as such after the completion of chemical reaction.
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Catalyst is a chemical whose presence facilitates a reaction but the catalyst does not take part in the reaction and its mass remains unchanged at the end of the reaction. In the electrolysis of water to hydrogen and Oxygen, presence of potassium permanganate acts as a catalyst to speed up the proce...
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Catalyst is a chemical whose presence facilitates a reaction but the catalyst does not take part in the reaction and its mass remains unchanged at the end of the reaction. In the electrolysis of water to hydrogen and Oxygen, presence of potassium permanganate acts as a catalyst to speed up the process read less
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