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.
Oxidizing agent
S+2H2SO4(conc.) ----> 3SO2+2H2O
Non-volatile acid:
2NaNO3 +H2SO4 (conc.) ---> Na2SO4 +2HNO3
Write balanced chemical equations for the following reactions:
Ethane and oxygen in the presence of molybdenum oxide