Advertisements
Advertisements
Question
Which one is an example of a heterogeneous catalyst?
Options
Hydrolysis of sugar catalysed by H+ ions.
Decomposition of ozone is presence of nitrogen monoxide.
Combination between dinitrogen and dihydrogen to form ammonia in the presence of finely divided iron.
Oxidation of sulphur dioxide into sulphur trioxide in the presence of oxides of nitrogen.
Advertisements
Solution
Combination between dinitrogen and dihydrogen to form ammonia in the presence of finely divided iron.
Explanation:
Let us write the reactions for all the options.
\[\ce{C12H22O11_{(aq)} + H2O ->[H^+] C6H12O6_{(aq)} + C6H12O6_{(aq)}}\]
It is a homogeneous reaction.
\[\ce{2O3_{(g)} ->[NO_{(g)}] 3O2_{(g)}}\]
It is a homogeneous reaction.
\[\ce{N2_{(g)} + 3H2_{(g)} -> 2NH3_{(g)}}\]
Reactants and catalyst are in different phases.
It is a heterogeneous reaction.
\[\ce{SO2_{(g)} + 1/2 O2_{(g)} ->[NO_{(g)}] SO3_{(g)}}\]
