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प्रश्न
Name the product formed on strongly heating ferrous sulphate crystals. What type of chemical reaction occurs in this change?
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उत्तर
Strong heating of ferrous sulphate (FeSO4) crystals results in the formation of products such as ferric oxide (Fe2O3), Sulphur dioxide (SO2), and sulphur trioxide (SO3).
\[\ce{2FeSO4_{(s)} ->[\Delta] Fe2O3_{(s)} + SO2_{(g)} + SO3_{(g)}}\]
This change is a thermal decomposition reaction (a specific type of decomposition reaction), where a single reactant breaks down into simpler products when heated.
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संबंधित प्रश्न
Why are decomposition reactions called the opposite of combination reactions? Write equations for these reactions.
Write one equation for decomposition reactions where energy is supplied in the form of heat.
State an important use of decomposition reactions.
Give one example of a decomposition reaction which is carried out by applying heat.
What type of reaction is represented by the following equation?
\[\ce{2FeSO4 -> Fe2O3 + SO2 + SO3}\]
What type of reaction is represented by the following equation?
\[\ce{NH4Cl -> NH3 + HCl}\]
What is meant by a decomposition reaction?
MULTIPLE CHOICE QUESTIONS
Tick the most appropriate answer.
Thermal decomposition of a substance is brought about with the help of
- reactants
- water
- wind
- heat
A student wants to study a decomposition reaction by taking ferrous sulphate crystals. Write two precautions he must observe while performing the experiment.
Give a balanced equation for the following type of reaction:
A thermal decomposition reaction in which a compound decomposes to give two new compounds.
Differentiate between the following:
Thermal decomposition and thermal dissociation.
Differentiate between the following:
Electrolytic decomposition and photochemical decomposition.
The following reaction is used for the preparation of oxygen gas in the laboratory:
\[\ce{2KClO3_{(s)} ->[Heat] 2KCl + 3O2_{(g)}}\]
Which of the following statement about the reaction is correct?
Give the ratio in which hydrogen and oxygen are present in water by volume.
When SO2 gas is passed through a saturated solution of H2S, which of the following reaction occurs?
Marble statues are corroded or stained rain water. Identify the main reason.
The reaction of calcium carbonate, with freshly prepared lime water, is shown below:
Answer the questions with the help of a diagram:
- What type of reaction does calcium carbonate undergoes?
- What change in colour is observed in lime?
- Write the chemical equation.
Write the molecular formula of calcium carbonate.
