Question

How many types of catalyst reactions?

Answer 1

A catalyst is a substance that speeds up the rate of a reaction without itself being consumed in the reaction. Any reaction that makes use of a catalyst is termed catalysis.

Following are two types of catalysis reactions:-

1. A reaction is considered homogeneously catalyzed when the catalyst and the reactant(s) are in the same physical state or phase. This most often happens with gaseous catalyst-reactant pairs. Types of homogeneous catalysts include organic acids in which the donated hydrogen atom is replaced by a metal, a number of compounds blending carbon and metal elements in some form, and carbonyl compounds joined to cobalt or iron.

2. A reaction is considered heterogeneously catalyzed when the catalyst and the reactant(s) are in different phases, with the reaction occurring at the interface between them (most commonly, the gas-solid "border"). Some of the more common heterogeneous catalysts include inorganic – that is, non-carbon-containing – solids such as elemental metals, sulfides and metallic salts, as well as a smattering of organic substances.