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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
Name the gas that is produced in the given cases :
An action of dilute hydrochloride acid on sodium sulphide.
Write an equation for the reaction of hydrochloric acid on caustic soda solution.
Write an equation for the reaction of hydrochloric acid on zinc carbonate.
Convert two soluble metallic nitrates to insoluble metallic chlorides using dil. HCl.
What would happen if
Calcium oxide is used to dry hydrogen chloride.
What must be added to sodium chloride to prepare hydrogen chloride?
Write balanced equation for the following reaction:
Copper oxide and 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 |
Select from the list given (a to e) one substances in each case which matches the description given in parts (i) to (v). (Note : Each substance is used only one in the answer)
(a) Nitroso Iron (II) Sulphate
(b) Iron (III) chloride
(c) Chromium sulphate
(d) Lead (II) chloride
(e) Sodium chloride
(i) A compound which is deliquescent
(ii) A compound which is insoluble in cold water, but soluble in hot water
(iii) The compound responsible for the brown ring during the brown ring test of nitrate iron
(iv) A compound whose aqueous solution is neutral in nature
(v) The compound which is responsible for the green colouration when sulphur dioxide is passed through acidified potassium dichromate solution
Identify the anion present of the following compound:
When barium chloride solution is added to salt solution E a white precipitate insoluble in dilute hydrochloric acid is obtained
