98.5% Sulphuric acid is known as
Galena
Calcinite
Vinegar
Oleum
Concentrated Sodium Chloride solution is called
Brine
The main ore of iron is
Haematite
Bauxite
Epsom
Rust is a red - brown powder consisting mainly of
Iron(III)oxide
Iron Chloride
Iron Hydroxide
The ore of aluminium is
Copper pyrites
The process of manufacture of nitric acid is called
Koope's process
Hall's process
Ostwald process
Van Arkel process
The carbon content in medium steel is
0.45 - 1.5
<0.25
0.25 - 0.45
2.5 - 4.5
An electrolytic process of extracting aluminium is
Hall - Heroult process
Bauxite process
The process of coating an object with a layer of the more reactive metal zinc is called
Electrolysis
Galvanisation
Chromatography
Thermal analysis
The major impurity in Iron ore is
Calcium oxide
Silica
Clay
Mud
