Advertisements
Advertisements
प्रश्न
Balance the following chemical equation.
- Na + O2 → Na2O3
- Ca + N2 → Ca3N2
- N2 + H2 →NH3
- CaCO3 +HCl → CaCl2 + CO2 +H2O
- Pb(NO3)2 → PbO + NO2 + O2
Advertisements
उत्तर
- 4Na + O2 → 2Na2O
- 3Ca + N2 → Ca3N2
- N2 + 3H2 → 2NH3
- CaCO2 + 2HCl → CaCl2 + H2O + CO2
- 2Pb (NO3)2 → 2PbO + 4NO2 + O2
APPEARS IN
संबंधित प्रश्न
Why should a magnesium ribbon be cleaned before it is burnt in the air?
Complete and balance the following equation:
NaOH + .......... \[\ce{-> Na2SO4 + H2O}\]
When potassium nitrate is heated, it decomposes into potassium nitrite and oxygen. Write a balanced equation for this reaction and add the state symbols of the reactants and products.
Name the various types of chemical reactions.
Balance the following equation:
Fe2O3 + CO → Fe + CO2
Write the balanced chemical equation of the following reaction.
sodium chloride + manganese dioxide + sulphuric acid → sodium hydrogen sulphate + manganese sulphate + water + chlorine.
(a) Give only one suitable chemical test to identify the following gases.
- Ammonia
- Sulphur dioxide
- Hydrogen Chloride
- Chlorine
- Carbon Dioxide
- Oxygen
- Hydrogen
(b) Select a basic gas mentioned in Q.1 (a). How is the basic nature suspected?
(c)Select acidic gases from the gases mentioned in Q.1 (a). How is the acidic nature suspected?
(d) State the gas responsible for bleaching action.
(e)Which gas turn blue cobalt chloride paper light pink?
Identify the type of reaction taking place of the following case and write the balanced chemical equation of the reaction:
Zinc reacts with silver nitrate to produce zinc nitrate and silver.
Give an example of a chemical equation in which two reactants form:
four product
Balance the following simple equation:
KHCO3 → K2CO3 + H2O + CO2
