# Differentiate between homogeneous and heterogeneous catalysis with one example each.

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Hint: Catalysts are the species that are added in order to increase the rate of reaction. These species help in increasing the rate of a reaction without itself being consumed. Enzymes and proteins present in our body also act as catalysts.

${C_{12}}{H_{22}}{O_{11}}\left( {aq} \right)\xrightarrow{{dil.HCl\left( {aq} \right)}}{C_6}{H_{12}}{O_6}\left( {aq} \right)\begin{array}{*{20}{c}} {}&{} \end{array} + \begin{array}{*{20}{c}} {}&{{C_6}{H_{12}}{O_6}\left( {aq} \right)} \end{array}$
Heterogeneous catalysis describes the process catalysts are of different phase than reactants or products. This type of catalysis involves solid and gas phase catalysts. For example: In formation of ammonia iron is used as catalyst ${N_2}\left( g \right) + 3{H_2}\left( g \right)\xrightarrow{{Fe\left( s \right)}}2N{H_3}\left( g \right)$
$C{H_3}C{H_2}OH\xrightarrow{{Ni}}C{H_3}CHO + {H_2}$
That IUPAC name of catalyst is cupric chloride $\left( {CuC{l_2}} \right)$ and it is not consumed in the reaction and in the specific process like deacon’s process, only this catalyst is used so other compound having the same property can’t be the answer. Deacon’s process is mainly used to produce chlorine commercially.