Question

what happen when sulphur burns in the presence of oxygen? How will you show that the compound formed in this reaction is acidic in nature?

Answer 1

It gives Sulphur Dioxide.

Answer 2

if the sulfur burns in the presence of oxygen  if we take sulfur in deflagrating  spoon heated in a bunser burner it begans to burn and then lowered into a jar of pure oxygen .The sulfur then flares up into a much brighter  blue frame and eventually begins to throw of fumes of sulfur dioxide and trioxide