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प्रश्न
State one relevant observation for the following
When hydrogen sulfide gas is passed through lead acetate solution.
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उत्तर
When hydrogen sulfide gas is passed through lead acetate solution, it forms a black precipitate of lead sulfide.
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संबंधित प्रश्न
State one relevant observation for given reactions:
Action of dilute Hydrochloric acid on iron (II) sulfide.
Write an equation for the reaction of hydrochloric acid on caustic soda solution.
Write an equation for the reaction of aqueous hydrochloric acid on lead nitrate solution.
State the composition of aqua regia. State which component is the oxidizing agent in aqua regia.
Fill in the blank:
On addition of silver nitrate to hydrochloric acid ___________ precipitate is formed which is soluble in ____________
Write a fully balanced of the following case :
Magnesium metal is treated with dilute hydrochloric acid.
Match the following:
| Column A | Column B |
| 1. A substance that turns moist starch iodide paper blue. | A. Ammonium sulphate |
| 2. A compound which release a reddish brown gas on reaction with concentrated sulphuric acid and copper turnings. | B. Lead carbonate |
| 3. A solution of this compound gives dirty green precipitate with sodium hydroxide. | C. Chlorine |
| 4. A compound which on heating with sodium hydroxide produces a gas which forms dense white fumes with hydrogen chloride. | D. Copper nitrate |
| 5. A white solid which gives a yellow residue on heating | E. Ferrous sulphate |
Write the balanced equation for the reaction of dilute hydrochloric acid with the following:
Iron (II) sulphide
Write observation:
Lead nitrate solution is mixed with dilute hydrochloric acid and heated.
State your observation when:
Decomposition of bicarbonates by dil. H2SO4
2NaHCO3 + H2SO4 → Na2SO4 + 2H2O + 2CO2
2KHCO3 + H2SO4 → K2SO4 + 2H2O + 2CO2
