Sulfuric acid, Nitrogen, Oxygen, Ethylene, Propylene are some of the examples of heavy chemicals in chemical industries.
Step-by-step explanation:
Sulfuric acid ():
Removing impurities during refining of petroleum
Removing metallic oxides prior to electroplating and metal galvanizing
Removing water during chemical reactions
Acting as a reactant in the manufacture of rayon and nitroglycerine
Nitrogen (₂):
In the manufacture of steel and other metals
In cooling concrete, which further improves the properties of the building material
In freezing soggy ground, further making construction easier.
Ethylene (C₂H₄):
To manufacture ethanol for industrial uses.
To produce polyester
To produce synthetic rubber