Chemistry
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.
Related Questions
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.
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.
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
The following questions relate to mole concept.
(a) the volume of 320 g of SO2 at STP.
(Atomic mass of S = 32 and O = 16)
(b) the mass of 1022 atoms of sulphur.
[Atomic mass : S = 32 and O = 16, Avogadro's number (NA) = 6.022 x 1023]