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प्रश्न
Write one equation for the decomposition reaction where energy is supplied in the form of light.
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उत्तर
- \[\ce{\ce{\underset{Hydrogen peroxide}{2H2O2_{(l)}}} ->[Light] \underset{Water}{2H2O_{(l)}} + \underset{Oxygen}{O2_{(g)}}}\]
- \[\ce{\underset{(White)}{\underset{Silver chloride}{2AgCl_{(s)}}} ->[sunlight][Decomposition] \underset{(Greyish white)}{\underset{Silver}{2Ag_{(s)}}} + \underset{(Yellowish green)}{\underset{Chlorine}{Cl2_{(g)}}}}\]
- \[\ce{\underset{(Pale yellow)}{\underset{Silver bromide}{2AgBr_{(s)}}} ->[Light][(Decomposition)] \underset{(Greyish white)}{\underset{Silver}{2Ag_{(s)}}} + \underset{(Red-brown)}{\underset{Bromine}{Br2_{(g)}}}}\]
संबंधित प्रश्न
What type of reaction is represented by the digestion of food in our body?
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 is meant by a decomposition reaction?
State the change in colour observed in the following case, mentioning the reason:
Silver chloride is exposed to sunlight.
When a green iron salt is heated strongly, its colour finally changes to brown and odour of burning sulphur is given out.
- Name the iron salt.
- Name the type of reaction that takes place during the heating of iron salt.
- Write a chemical equation for the reaction involved.
Two metals X and Y form the salts XSO4 and Y2SO4, respectively. The solution of salt XSO4 is blue in colour whereas that of Y2SO4 is colourless. When barium chloride solution is added to XSO4 solution, then a white precipitate Z is formed along with a salt which turns the solution green. And when barium chloride solution is added to Y2SO4 solution, then the same white precipitate Z is formed along with colourless common salt solution.
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- Write the name and formula of salt Y2SO4.
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- Write the name and formula of the salt which turns the solution green in the first case.
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- What type of reaction does calcium carbonate undergoes?
- What change in colour is observed in lime?
- Write the chemical equation.
What is observed when silver chloride is exposed to sunlight? Give the type of reaction involved.
