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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
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उत्तर
Fe2O3 + 2H2 → 2Fe + 3H2O
Correct balance – 3H2
Fe2O3 + 3H2 → 2Fe + 3H2O
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संबंधित प्रश्न
Balance the given equation:
AI(OH)3 
AI2O3 +H2O
Balance the given chemical equation:
C + CO2 → CO
State one characteristic of the chemical reaction which takes place when dilute sulphuric acid is added to barium chloride solution.
State one characteristic of the chemical reaction which takes place when wax is burned in the form of a candle?
When metal X is treated with a dilute acid Y, then a gas Z is evolved which burns readily by making a little explosion.
(a) Name any two metals which can behave like metal X.
(b) Name any two acids which can behave like acid Y.
(c) Name the gas Z.
(d) Is the gas Z lighter than or heavier than air?
(e) Is the reaction between metal X and dilute acid Y, exothermic or endothermic?
(f) By taking a specific example of metal X and dilute acid Y, write a balanced chemical equation for the reaction which takes place. Also indicate physical states of all the reactants and products.
Write symbolic representation for the following word equation and balance them :
Aluminium + Chlorine → Aluminium chloride.
Complete the following equation:
CH4 + O2 —>
Give one example in the case where supplying energy [given below] is necessary for a chemical reaction.
Light energy
Underline the compound in the equation given below, it is incorrectly balanced and write the correct balancing for the same.
2H2O + 2Cl2 → 2HCl + O2
Which of the following are exothermic processes?
- Reaction of water with quick lime
- Dilution of an acid
- Evaporation of water
- Sublimation of camphor (crystals)
