Advertisements
Advertisements
प्रश्न
Underline the compound in the equation given below, it is incorrectly balanced and write the correct balancing for the same.
Fe2O3 + 2H2 → 2Fe + 3H2O
Advertisements
उत्तर
Fe2O3 + 2H2 → 2Fe + 3H2O
Correct balance – 3H2
Fe2O3 + 3H2 → 2Fe + 3H2O
APPEARS IN
संबंधित प्रश्न
Write complete balanced equation for the following reaction:
Sulphur dioxide (gas) + Oxgyen (gas)
Sulphur trioxide (gas)
State one characteristic of the chemical reaction which takes place when dilute sulphuric acid is added to barium chloride solution.
What do you understand by endothermic reactions?
Is Decomposition of calcium carbonate an endothermic reaction or an exothermic reaction?
Explain the following reaction with one suitable example .
Decomposition reaction
Write the chemical equation for the following word equation and balance them.
Carbon + Oxygen → Carbon dioxide
Write the chemical equation for the following word equation and balance them.
Magnesium + Sulphuric acid → Magnesium sulphate + Hydrogen
Match column A with column B.
| Column A | Column B |
| (a) Blue salt changes to white and then black | (i) Ammonium dichromate |
| (b) Orange coloured compound changes to green. | (ii) Iodine |
| (c) Red compound changes to brown and then yellow. | (iii) Zinc Nitrate |
| (d) White to yellow when hot and white when cold. | (iv) Copper sulphate |
| (e) Violet solid changes to violet vapours. | (v) Red Lead |
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.
Balance the following simple equation:
CO2 + C → CO
