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प्रश्न
Give a chemical test to distinguish between the following pair of compounds:
Hydrogen chloride gas and hydrogen sulphide gas
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उत्तर
When exposed to hydrogen sulphide gas, lead acetate paper that is moist turns black; when exposed to hydrogen chloride gas, it remains colourless.
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संबंधित प्रश्न
State one relevant observation for given reactions:
Action of dilute Hydrochloric acid on iron (II) sulfide.
The acid on mixing with silver nitrate solution produces a white precipitate which is soluble in excess ammonium hydroxide
Write an equation for the reaction of hydrochloric acid on the silver nitrate solution.
How will the action of dilute hydrochloric acid enable you to distinguish between sodium thiosulphate and sodium sulphite?
MnO2, PbO2 and red lead react with conc. HCl acid to liberate Cl2.
What is the common property being shown by these metal oxides?
State the composition of aqua regia. State which component is the oxidizing agent in aqua regia.
A solution of hydrogen chloride in water is prepared. The following substances are added to separate portions of the solution:
| S. No. | Substances added | Gas evolved | Odour |
| 1. | Calcium carbonate | _________ | _________ |
| 2. | Magnesium ribbon | _________ | _________ |
| 3. | Manganese (IV) oxide with heating | _________ | _________ |
| 4. | Sodium sulphide | _________ | _________ |
Complete the table by writing the gas evolved in each case and its odour.
What is the property of concentrated sulphuric acid (H2SO4) which allows it to be used in the preparation of hydrogen chloride (HCl) and nitric acid (HNO3)?
Write a fully balanced of the following case :
Red lead is warmed with concentrated hydrochloric acid.
How will you identify?
An amphoteric hydroxide
