Chemistry
State the composition of aqua regia. State which component is the oxidizing agent in aqua regia.
Related Questions
Match the following reactions in column A with the gas evolved in column B :
Column A Column B (a) Potassium sulphite is treated with dilute hydrochloric acid. A. Cl2 (b) Concentrated hydrochloric acid is made to react with manganese dioxide. B. H2S (c) Iron sulphide reacts with dil. HCl C. SO2 (d) Calcium carbonate is added to dil. HCl D. CO2 Solution A reacts with an acid B (which gives greenish yellow gas on reacting with oxidising agents like Pb3O4) to give white precipitate C insoluble in nitric acid but soluble in ammonium hydroxide. Name A, B and C.
MnO2, PbO2 and red lead react with conc. HCl acid liberates Cl2.
What is the common property being shown by these metal oxides?
Complete and balance the following reactions, state whether dilute or conc. acid is used.
(a) NH4OH + HCl ⟶
(b) NaHSO3 + HCl ⟶
(c) Pb(NO3)2 + HCl ⟶
(d) Pb3O4 + HCl ⟶