What is the name of the process of extracting sulfur on commercial scale?

What happens in the purifying chamber in contact process?

Marine life is more comfortable in warm water than cold water. True or false?

How many moles of nitric acid is required to convert 1 mole of sulfur to sulfuric acid?

Nitrogen atom is represented at 147N. How many electrons does it need to attain the noble gas configuration?

Halogens do not occur in the free state.

Phosphorus trichloride does not react with Grignard reagents.

How does PCl5 exist in its solid state?