Chemistry
MnO2, PbO2 and red lead react with conc. HCl acid liberates Cl2.
What is the common property being shown by these metal oxides?
Related Questions
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.
State the composition of aqua regia. State which component is the oxidizing agent in aqua regia.
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 ⟶
How will the action of dilute hydrochloric acid enable you to distinguish between the following?
(a) Sodium carbonate and sodium sulphite
(b) Sodium thiosulphate and sodium sulphite.