State what is observed when:
Excess of ammonia a passed through an aqueous solution of lead nitrate
Explain why only all-glass apparatus should be used for the preparation of nitric acid by heating concentrated sulphuric acid and potassium nitrate.
Concentrated sulphuric acid si both an oxidising agent and a non-volatile acid.
Write one equation each to illustrate the above-mentioned properties of a sulphuric acid.
Give reason for the following:
Sulphuric dioxide is used as an antichlor.
SO2 removes excess chlorine from bleached articles by reacting with it.
Write balanced chemical equations for the following reactions:
Ethane and oxygen in the presence of molybdenum oxide