Advertisements
Advertisements
प्रश्न
State your observations when Dilute Hydrochloric acid is added to Sodium thiosulphate.
Advertisements
उत्तर
Dil. HCl reacts with thiosulphates to produce sulphur dioxide and yellow sulphur is precipitated.
Na2S2O3 + 2HCl → 2NaCl + H2O + SO2 + S ↓
APPEARS IN
संबंधित प्रश्न
State one relevant observation for given reactions:
Action of dilute Hydrochloric acid on iron (II) sulfide.
Write an equation for the reaction of hydrochloric acid on magnesium foil.
Write an equation for the reaction of hydrochloric acid on copper oxide.
Name an element which reacts with hydrogen to form a compound which is strongly acidic in water.
Name the following:
Five oxidizing agents that liberated chlorine from concentrated hydrochloric acid.
Write a fully balanced of the following case :
Red lead is warmed with concentrated hydrochloric acid.
Write the balanced equation for the reaction of dilute hydrochloric acid with the following:
Iron (II) sulphide
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.
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.
