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प्रश्न
Write a balanced equation for the action of dilute hydrochloric acid on sodium sulphide.
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उत्तर
\[\ce{Na2S + 2HCl -> 2NaCl + H2S}\]
संबंधित प्रश्न
For the preparation of hydrochloric acid in the laboratory:
What arrangement is done to dissolve hydrogen chloride gas in water?
Name an element which reacts with hydrogen to form a compound which is strongly acidic in water.
Convert two soluble metallic nitrates to insoluble metallic chlorides using dil. HCl.
Fill in the blank:
On addition of silver nitrate to hydrochloric acid ___________ precipitate is formed which is soluble in ____________
Write balanced equation for the following reaction:
Copper oxide and dilute hydrochloric acid.
Write balanced equcation for the following reaction:
Manganese (IV) oxide and concentrated hydrochloric acid.
How will you identify?
An amphoteric hydroxide
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 |
State which of the two - a solution of HCl in water or in toluene is an electrolyte. Explain.
State which of the two - a solution of HCl in water or in toluene is an electrolyte. Explain.
