What is the oxidation state of phosphorus in hypophosphoric acid?

Who discovered the element chlorine?

Which of the following is true about interhalogen compounds?

Why is nitrogen preferably used in welding process and cooling of substances?

Which of the following metals does not react with hot water to form an oxide?

Which of the following is also referred to as ‘Marshall’s acid’?

What is the acidity of peroxodisulfuric acid?

What is the catalyst used in contact process in the conversion of Sulphur dioxide to Sulphur trioxide?