Advertisements
Advertisements
प्रश्न
State your observation when:
Decomposition of bicarbonates by dil. H2SO4
2NaHCO3 + H2SO4 → Na2SO4 + 2H2O + 2CO2
2KHCO3 + H2SO4 → K2SO4 + 2H2O + 2CO2
Advertisements
उत्तर
Dilute sulphuric acid liberates carbon dioxide from metallic carbonates and bicarbonates. Carbon dioxide, when bubbled into a test tube containing calcium hydroxide solution, turns it milky.
संबंधित प्रश्न
Complete the following by selecting the correct option from the choices given:
The metal which does not react with water or dilute H2SO4 but reacts with concentrated H2SO4 is _________. (Al/Cu/Zn/Fe)
State your observation when dilute hydrochloric acid is added to a lead nitrate solution and the mixture is heated.
State your observations when Dilute Hydrochloric acid is added to Copper carbonate
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.
Name an element which reacts with hydrogen to form a compound which is strongly acidic in water.
How will the action of dilute hydrochloric acid enable you to distinguish between sodium thiosulphate and sodium sulphite?
State which component is the oxidizing agent in aqua regia.
How will you distinguish between the two black samples, CuO and MnO2 with a chemical test?
Write an equation for the reactions of hydrochloric acid on manganese (IV) oxide.
