Advertisements
Advertisements
प्रश्न
Complete and balance the following equation:
\[\ce{Al2O3 + NaOH ->}\]
उत्तर
\[\ce{Al2O3 + 2NaOH -> \underset{Sodium aluminate}{2NaAlO2 + H2O}}\]
APPEARS IN
संबंधित प्रश्न
Differentiate between:
A balanced and an unbalanced chemical equation.
Write a balanced chemical equation for the following word equation:
Iron + Chlorine → Iron (III) chloride
Underline the incorrectly balanced compound equation and rewrite the correct equation.
\[\ce{2Na + 3H2O->2NaOH + H2}\]
Balance the following important equation:
NaAlO2 + H2O → NaOH + Al(OH)3
Balance the following important equation:
\[\ce{Al(OH)3 -> Al2O3 + H2O}\]
Balance the following important equation:
Ca(HCO3)2 + HNO3 → Ca(NO3)2 + H2O + CO2
Balance the following important equation:
C + H2SO4 (conc.) → CO2 + H2O + SO2
Barium chloride on reacting with ammonium sulphate forms barium sulphate and ammonium chloride. Which of the following correctly represents the type of the reaction involved?
- Displacement reaction
- Precipitation reaction
- Combination reaction
- Double displacement reaction
Write the balanced chemical equations for the following reactions and identify the type of reaction in each case.
- Nitrogen gas is treated with hydrogen gas in the presence of a catalyst at 773 K to form ammonia gas.
- Potassium hydroxide solution is treated with acetic acid to form potassium acetate and water.
- Ethanol is warmed with ethanoic acid to form ethyl acetate in the presence of concentrated H2SO4.
- Ethene is burnt in the presence of oxygen to form carbon dioxide, water and release heat and light.
Which among the following change is exothermic or endothermic in nature?
Dilution of sulphuric acid
