Question

Contain substances like Co, arsenic, etc., if present Iower the activity of catalyst. These substances are called​

Answer 1

Answer:

Catalysis may be classified as either homogeneous, whose components are dispersed in the same phase (usually gaseous or liquid) as the reactant, or heterogeneous, whose components are not in the same phase. Enzymes and other biocatalysts are often considered as a third category.