Thu September 27, 2012 By:

what is catalyst.what is its need.explain

Expert Reply
Thu September 27, 2012

A catalyst is a substance which causes the process of catalysis. Catalysis is the change in rate of a chemical reaction due to the participation of a substance called a catalyst. Unlike other reagents that participate in the chemical reaction, a catalyst is not consumed by the reaction itself. A catalyst may participate in multiple chemical transformations.

These days catalyst are used in almost every field like petroleum industry use catalyst for energy processing ,food processing, prepration of various chemicals
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