Distinction Between Colourless Solutions of Dilute Acids and Alkalis.

From the following list of substances choose those which meet the description given below. Ammonium chloride, Ammonium nitrate, Chlorine, dilute Hydrochloric acid, iron, lead nitrate, manganese (IV) oxide, silver nitrate, sodium nitrate, sodium nitrite and sulphur. 

Two compounds whose aqueous solution give white precipitates with dilute hydrochloric acid?

Name the gases which extinguishes burning wooden splinter.

Name a gas which turns moist red litmus paper blue.