Advertisements
Advertisements
प्रश्न
Give three distinct test [apart from using an indicator] you would carry out with solution of \[\ce{HCl}\] to illustrate the typical properties of an acid.
उत्तर
Three tests are:
1. \[\ce{HCl}\] gas gives thick white fumes of ammonium chloride when a glass rod dipped in ammonia solution is held near the vapours of the acid.
\[\ce{NH3 + HCl -> NH4Cl}\]
2. With silver nitrate, \[\ce{HCl}\] gives white precipitate of silver chloride. The precipitate is insoluble in nitric acid but soluble in ammonium hydroxide.
\[\ce{AgNO3 + HCl -> AgCl + HNO3}\]
3. A greenish-yellow gas is liberated when concentrated hydrochloric acid is heated with an oxidizing agent like manganese dioxide.
\[\ce{MnO2 + 4HCl -> MnCl2 +2H2O + Cl2}\]
APPEARS IN
संबंधित प्रश्न
State your observations when Dilute Hydrochloric acid is added to Sodium thiosulphate.
State your observation When moist starch iodide paper is introduced into chlorine gas.
Write an equation for the reaction of hydrochloric acid on zinc carbonate.
State the composition of aqua regia. State which component is the oxidizing agent in aqua regia.
State which component is the oxidizing agent in aqua regia.
Write a fully balanced of the following case :
Red lead is warmed with concentrated hydrochloric acid.
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 |
State which of the two - a solution of HCl in water or in toluene is an electrolyte. Explain.
Write an equation for the reaction of hydrochloric acid on manganese (IV) oxide.
