Substances

Name a diatomic gas that makes up 78% of dry air.

What catalyst is used in the Contact process?

What is the name of the ester formed when methanoic acid reacts with propanol?

Which lead salt is soluble in water?

Name one natural polymer.

Name the reagent used to oxidise ethanol to form ethanoic acid.

What type of polymerization occurs when but-2-ene is polymerized to form poly(but-2-ene)?

Name the substance that changes from a white solid to a blue solid when water is added to it.

Name a gas which dissolves in water to form an alkaline solution.

Name the substance that kills microbes during the treatment of the domestic water supply.