2- chlorobutane

2- hydroxyopanoic acid

2,3 – dichloropentane

2-3- dichlorobutane

Acetone

Acetamide

Acetonitrile

Acetic acid

1- chloropentane

3-chloro-2- methyl pentane

1-chloro -2- methyl pentane

2- chloropentane

Enzymes are specific biological catalysts that can normally function at very high temperature (T ~ 1000 K)

Enzymes are specific biological catalysts that the posses well – defined active sites

Enzymes are specific biological catalysts that can not be poisoned

Enzymes are normally heterogeneous catalysts that are very specific in their action