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प्रश्न
State your observations when Dilute Hydrochloric acid is added to Copper carbonate
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उत्तर
When dilute hydrochloric acid is added to copper carbonate, it decomposes to give copper chloride.
CuCO3 + 2HCl → CuCl2 + H2O + CO2 ↑
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संबंधित प्रश्न
Select from the list the gas that matches the description given in case
[ammonia, ethane, hydrogen chloride, hydrogen sulfide, ethyne]
This gas has a characteristic rotten egg smell.
State one relevant observation for the following
When hydrogen sulfide gas is passed through lead acetate solution.
MnO2, PbO2 and red lead react with conc. HCl acid to liberate Cl2.
What is the common property being shown by these metal oxides?
Name the following:
Salt obtained by heating sodium chloride with concentrated sulphuric acid below 200 degree celcius.
Name the following:
Gas obtained by treating ferrous sulphide with hydrochloric acid.
Write balanced equcation for the following reaction:
Manganese (IV) oxide and concentrated 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
Write the balanced equation for the reaction of dilute hydrochloric acid with the following:
Sodium hydrogen carbonate
State which of the two - a solution of HCl in water or in toluene is an electrolyte. Explain.
