A white powder produced when magnesium is burnt.
Magnesium oxide
Magnesium sulphate
Magnesium hydroxide
Magnesium chloride
The main gas in natural gas is:
Butane
Methane
Propane
Isobutane
The catalyst used in contact process.
Nickel
Zinc
Platinum
Vanadium oxide
In the manufacture of ammonia, the process is called:
Van-Arkel process
Bauxite process
Zaeman process
Haber process
