8.12 How do you count for the following observations?
(b) When concentrated sulphuric acid is added to an inorganic mixture containing chloride, we get colourless pungent smelling gas HCl, but if the mixture contains bromide then we get red vapour of bromine. Why ?
HCl is a weak reducing agent and it cannot reduce to thats why we get colourless pungent smelling gas HCl.
When conc. sulphuric acid is added to an inorganic mixture containing bromide initially it produces and it is a strong reducing agent so it reduces to with evolution of is a red vapor of bromine.