Advertisements
Advertisements
Question
Study the following observation and name the anion present in the reaction:
When few drops of dilute sulphuric acid is added to Salt 'R' and heated, a colourless gas is released which turns moist lead acetate paper silvery black.
Solution
The observation indicates that the gas released reacts with lead acetate paper, turning it silvery black. This suggests the presence of hydrogen sulfide (H2S) gas, which reacts with lead acetate to form lead sulfide (PbS), a black precipitate.
Sulphide (S2-)
APPEARS IN
RELATED QUESTIONS
Identify the anion present in the following compounds.
Compound Z which on reacting with dilute sulphuric acid liberates a gas that has no effect on acidified potassium dichromate but turns lime water milky.
Study the following observation and name the anion present in the reaction:
When a crystalline solid 'P' is warmed with concentrated H2SO4 and copper turnings a reddish brown gas is released.
Study the following observation and name the anion present in the reaction:
When few drops of barium nitrate solution is added to the salt solution 'Q', a white precipitate is formed which is insoluble in HCl.
Identify only the anion present in the following compound:
The compound, on heating, produces a colourless, odourless gas which turns lime water milky and has no effect on acidified potassium dichromate solution.
Identify only the anion present in the following compound:
The solution of the compound which on treating with concentrated sulphuric acid and freshly prepared ferrous sulphate solution produces a brown ring.
