Taking the examples of magnesium and sulphur explain how metals and non-metals produce oxides with different characteristics.

i. Magnesium is metal. It burns in oxygen to produce basic magnesium oxide, MgO. When its is added to water, it produces a magnesium hydroxide which turns red litmus solution blue ii. sulphur is a non-metal with oxygen it forms acidic oxide it gets changed into sulphurous acid on reacting with water. This turns blue litmus solution red. Red litmus solution remains unaffected