Advertisements
Advertisements
प्रश्न
Write a balanced equation for the following word equation:
Aluminium + Oxygen → Aluminium oxide
उत्तर
4Al + 3O2 → 2Al2O3
APPEARS IN
संबंधित प्रश्न
How will you indicate a solution made in water in a chemical equation?
Balance the following equation:
Pb3O4 + HCl → PbCl2 + H2O + Cl2
Write the name and molecular formula of a carbon compound having its name suffixed with "-ol" and having two carbon atoms in its molecule. With the help of a chemical equation indicate what happens when this compound is heated with excess conc. H2SO4.
Write word equation for the following molecular equation:
\[\ce{CuSO4 + 2NaOH -> Na2SO4 + Cu(OH)2↓}\]
Word equation:
State the colour of the products.
A chemical reaction is generally accompanied by certain external indications or characteristics. These include – change of – (a) colour (b) state (c) smell (d) evolution of gas (e) formation of precipitate (f) evolution or absorption of heat. With reference to change of colour – state the change in colour seen when the following are heated – lead [IV] oxide.
Give an example of a chemical equation in which two reactants form:
two product
Underline the compound in the equation given below, it is incorrectly balanced and write the correct balancing for the same.
Fe2O3 + 2H2 → 2Fe + 3H2O
Underline the compound in the equation given below, it is incorrectly balanced and write the correct balancing for the same.
2H2O + 2Cl2 → 2HCl + O2
What is called thermolysis reactions?
Give the characteristic tests for the following gases :
- CO2
- SO2
- O2
- H2
