Advertisements
Advertisements
प्रश्न
In certain reaction an insoluble solid called precipitate is formed. State the colour and name of the precipitate formed in the following reaction involving addition of:
Copper [II] sulphate to sodium hydroxide.
Advertisements
उत्तर
Copper [II] sulphate and sodium hydroxide
\[\ce{CuSO4 2NaOH -> Na2SO4 + \underset{\text{Copper [II] hydroxide}}{Cu(OH)2↓}}\]
The precipitate formed is Copper [II] hydroxide which is pale blue in colour.
APPEARS IN
संबंधित प्रश्न
Substitute formulae for names and balance the following equation:
Calcium carbonate reacts with hydrochloric acid to produce calcium chloride, water and carbon dioxide gas.
State one characteristic of the chemical reaction which takes place when wax is burned in the form of a candle.
Write the balanced equation for the following chemical reaction.
\[\ce{Barium chloride + Aluminium sulphate -> Barium sulphate + Aluminium chloride}\]
Dry raisins were soaked in water for 2 hours, to determine the percentage of water absorbed by raisins. Before final weighing of swollen raisins, the extra water left on the surface of soaked raisins was removed by:
Write the balanced chemical equation of the following reaction.
silver nitrate → silver + nitrogen dioxide + oxygen
Write the balanced chemical equation of the following reaction.
barium chloride + sulphuric acid → barium sulphate + hydrochloric acid
Give word equation for the following chemical reaction and give the names of the product formed.
ZnCO3 → ZnO + CO2
Balance the following simple equation:
Zn + NaOH → Na2ZnO2 + H2
Write a balanced equation for the following word equation:
Potassium bicarbonate → Potassium carbonate + Water + Carbon dioxide
Give a balanced equation by the partial equation method, [steps are given below].
Oxidation of Lead [II] Sulphide by Ozone
- Ozone first decomposes to give molecular oxygen & nascent oxygen.
- Nascent oxygen then oxidises lead [II] sulphide to lead [II] sulphate.
