Chemistry
Name a probable cation present based on the following observation.
(a) White precipitate insoluble in NH4OH but soluble in NaOH.
(b) NaOH solution when added to the solution (A) gives a reddish brown precipitate.
Related Questions
Choose the substances given below to answer the following questions.
Ferrous chloride
Iron (II) sulphate
Iron (II) chloride
Copper chloride
Aluminium oxide
Copper (II) oxide
(a) A chloride which forms a precipitate that is soluble in excess of ammonium hydroxide.
(b) The salt which gives a dirty green precipitate with sodium hydroxide solution.
(c) The metal oxide which can react with acid as well as alkali.
Identify the acid and write the balanced equation for the following.
The acid on mixing with silver nitrate solution produces a white precipitate which is soluble in excess ammonium hydroxide and nitric acid.
State one relevant observation for each of the the following reactions.
(a) When hydrogen chloride gas is passed through a solution of sodium thiosulphate.
(b) Concentrated sulphuric acid is added to a solution of potassium nitrate.
(c) When fused lead bromide is electrolysed.
Give balanced chemical equations for the following.
(a) Calcium bicarbonate reacts with dilute hydrochloric acid.
(b) Ferric hydroxide with nitric acid.
(c) Zinc nitrate with ammonium hydroxide