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प्रश्न
What is observed when silver chloride is exposed to sunlight? Give the type of reaction involved.
What happens when silver chloride is exposed to sunlight? Write balanced chemical equations to support your answer.
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उत्तर
White silver chloride turns grey in sunlight when it is exposed to sunlight. This results from the light-induced breakdown of silver chloride into grey silver and chlorine.
\[\ce{2AgCl_{(s)} ->[Sunlight] 2Ag_{(s)} + Cl2_{(g)}}\]
This is a type of decomposition reaction.
Notes
Students should refer to the answer according to their questions.
संबंधित प्रश्न
What does one mean by exothermic reaction? Give example.
Decomposition reactions require energy either in the form of heat or light or electricity for breaking down the reactants. Write one equation each for decomposition reactions where energy is supplied in the form of heat, light and electricity
What type of reaction is represented by the digestion of food in our body?
State an important use of decomposition reactions.
A metal salt MX when exposed to light splits up to form metal M and a gas X2. Metal M is used in making ornaments whereas gas X2 is used in making bleaching powder. The salt MX is itself used in black and white photography.
- What do you think metal M is?
- What could be gas X2?
- Name the metal salt MX.
- Name any two salt solutions which on mixing together can produce a precipitate of salt MX.
- What type of chemical reaction takes place when salt MX is exposed to light? Write the equation of the reaction.
Classify the following reaction as combination, decomposition, displacement, precipitation and neutralization. Also balance the equation.
\[\ce{Zn_{(s)} + H2SO4 -> ZnSO4_{(s)} + H2_{(g)}}\]
What does one mean by endothermic reaction? Give example.
Give a balanced equation for –
A white precipitate obtained during a double decomposition reaction involving a silver salt with sodium salt.
Write the molecular formula of calcium carbonate.
Write one equation for the decomposition reaction where energy is supplied in the form of light.
