Advertisements
Advertisements
प्रश्न
State the change in colour observed in following case mentioning the reason:
Silver chloride is exposed to sunlight.
What happens when silver chloride is exposed to sunlight? Write a chemical equation for this reaction. Also give one use of such a reaction.
Advertisements
उत्तर
Photolytic Decomposition is the process by which silver chloride breaks down into silver and chlorine when exposed to sunlight. Silver metal and yellowish chlorine gas are the byproducts of the breakdown of white silver chloride.
The chemical reaction is given as follows:
\[\ce{2AgCl(s) ->[Light][Decomposition]2AgCl(s) + Cl2(g)}\]
संबंधित प्रश्न
Give one example of a decomposition reaction which is carried out by applying heat.
What type of chemical reaction take place when silver bromide is exposed to sunlight?
What type of chemical reaction is represented by the following equation?
X → Y + Z
What type of reaction is represented by the following equation?
NH4NO2 → N2 + 2H2O
Which of the following can be decomposed by the action of light?
(a) NaCl
(b) KCl
(c) AgCl
(d) CuCl
Explain the following type of chemical reaction, giving two examples for it:
Decomposition reaction
(a) Design an activity to demonstrate the decomposition reaction of lead nitrate.
(b) Draw labelled diagram of the experimental set-up. List two main observations.
(c) Write balanced chemical equation for the reaction stating the physical state of the reactant and the products.
A student wants to study a decomposition reaction by taking ferrous sulphate crystals. Write two precautions he must observe while performing the experiment.
How can the rate of the chemical reaction, namely, decomposition of hydrogen peroxide be increased?
Answer the following question.
2 g of silver chloride is taken in a china dish and the china dish is placed in sunlight for some time. What will be your observation in this case? Write the chemical reaction involved in the form of a balanced chemical equation. Identify the type of chemical reaction.
Give a balanced equation for –
A thermal decomposition reaction involving heat on limestone [calcium carbonate]
Complete the statement by filling in the blank with the correct word:
Decomposition of silver salts in the presence of sunlight is an example of _________.
Differentiate between the following:
Thermal decomposition and thermal dissociation.
Which one of the following processes involves chemical reactions?
Which of the following is an endothermic process?
When SO2 gas is passed through a saturated solution of H2S, which of the following reaction occurs?
On heating blue coloured powder of copper (II) nitrate, in a boiling tube, copper oxide (black), oxygen gas and a brown gas X is formed
- Write a balanced chemical equation of the reaction.
- Identify the brown gas X evolved.
- Identify the type of reaction.
- What could be the pH range of aqueous solution of the gas X?

- Identify the gasses evolved at the anode and cathode in the above experimental set up.
- Name the process that occurs. Why is it called so?
- Illustrate the reaction of the process with the help of a chemical equation.
Write one equation for decomposition reactions where energy is supplied in the form of electricity.
