8. In chromatographic analysis. 9. Qualitative analysis, e. g., lake test for Al 3 +.
Catalysis
Catalyst is a chemical substance which can change the rate of reaction without being used up in that reaction and this process is known as catalysis
A catalyst may be positive( i. e., increases rate of reaction) or negative( i. e., decreases rate of reaction).
Types of Catalysis
Homogeneous catalysis In this catalysis, and the catalyst reactants are in the same physical state [ phase ], e. g.,
Heterogeneous catalysis In heterogeneous catalysis, catalyst is present in a different phase than that of reactants, e. g.,
Autocatalysis When one of the product of a reaction acts as catalyst, the process is called autocatalysis.